Task Manager disabled by administrator

[Guest]

I am the administrator and can't figure out how to enable it. I never
disabled it that I know of but can't do the 3 finger salute anymore. Thanks

 

[Will Denny]

Hi

Try a virus check of your system with the latest definitions for your AV
program.

--


Will Denny

MS MVP Shell/User
Please Reply to the News Groups

 

[thecreator]

Right-click an empty part of the Task Bar and click Task Manager. If it
wasn't load, reboot and try again.

 

[Guest]

I saw where task manager was when I right click on task bar. Task Manager is
not highlighted so I cant do anything to it. Any suggestions. No different
after reboot.

 

[Guest]

I am the administrator and can't figure out how to enable it. I never
disabled it that I know of but can't do the 3 finger salute anymore. Thanks

Try this:
Open a run command and type in:
gpedit.msc click [ON]
On the group policy click on under User Cofiguration:
[&] Administrative Templates
[-] System
CTRL+ ALT+ Del Options =
Remove Taks Manager make sure it is n't configured or change the
settings to Disable.

Also under Computer configuration make sure this option is disabled:
[&] Computer Configuration
[-] Administrative Templates
[-] System

System Restore = Turn Off system restore

As will mentioned with respect to the greater opinion, you may be infected
and the virus taken control on your machine and assign itself as admin and
denied you any access or control on this machine, try to scan with whichever
software you have in both safe mode and Normal mode and also scan from an
on-line scanners to get better idea on how much your AV doing its job.
And also for malwares to make sure all clean.
Does you have other users with admin accounts on this machine?.
HTH.
let us know.
nass
===
www.nasstec.co.uk

 

[Guest]

my run command does not find file gpedit.msc-is it correct? Not finding any
viruses- Norton

I am the administrator and can't figure out how to enable it. I never
disabled it that I know of but can't do the 3 finger salute anymore. Thanks

Try this:
Open a run command and type in:
gpedit.msc click [ON]
On the group policy click on under User Cofiguration:
[&] Administrative Templates
[-] System
CTRL+ ALT+ Del Options =
Remove Taks Manager make sure it is n't configured or change the
settings to Disable.

Also under Computer configuration make sure this option is disabled:
[&] Computer Configuration
[-] Administrative Templates
[-] System

System Restore = Turn Off system restore

As will mentioned with respect to the greater opinion, you may be infected
and the virus taken control on your machine and assign itself as admin and
denied you any access or control on this machine, try to scan with whichever
software you have in both safe mode and Normal mode and also scan from an
on-line scanners to get better idea on how much your AV doing its job.
And also for malwares to make sure all clean.
Does you have other users with admin accounts on this machine?.
HTH.
let us know.
nass
===
www.nasstec.co.uk

 

[Guest]

Do you have XP Home or Professional, you look like using Home, am I right?.
Let us know which version you have.
nass

my run command does not find file gpedit.msc-is it correct? Not finding any
viruses- Norton

I am the administrator and can't figure out how to enable it. I never
disabled it that I know of but can't do the 3 finger salute anymore. Thanks

Try this:
Open a run command and type in:
gpedit.msc click [ON]
On the group policy click on under User Cofiguration:
[&] Administrative Templates
[-] System
CTRL+ ALT+ Del Options =
Remove Taks Manager make sure it is n't configured or change the
settings to Disable.

Also under Computer configuration make sure this option is disabled:
[&] Computer Configuration
[-] Administrative Templates
[-] System

System Restore = Turn Off system restore

As will mentioned with respect to the greater opinion, you may be infected
and the virus taken control on your machine and assign itself as admin and
denied you any access or control on this machine, try to scan with whichever
software you have in both safe mode and Normal mode and also scan from an
on-line scanners to get better idea on how much your AV doing its job.
And also for malwares to make sure all clean.
Does you have other users with admin accounts on this machine?.
HTH.
let us know.
nass
===
www.nasstec.co.uk

 

[Guest]

xp sp2 home

Do you have XP Home or Professional, you look like using Home, am I right?.
Let us know which version you have.
nass

my run command does not find file gpedit.msc-is it correct? Not finding any
viruses- Norton

:

I am the administrator and can't figure out how to enable it. I never
disabled it that I know of but can't do the 3 finger salute anymore. Thanks

Try this:
Open a run command and type in:
gpedit.msc click [ON]
On the group policy click on under User Cofiguration:
[&] Administrative Templates
[-] System
CTRL+ ALT+ Del Options =
Remove Taks Manager make sure it is n't configured or change the
settings to Disable.

Also under Computer configuration make sure this option is disabled:
[&] Computer Configuration
[-] Administrative Templates
[-] System

System Restore = Turn Off system restore

As will mentioned with respect to the greater opinion, you may be infected
and the virus taken control on your machine and assign itself as admin and
denied you any access or control on this machine, try to scan with whichever
software you have in both safe mode and Normal mode and also scan from an
on-line scanners to get better idea on how much your AV doing its job.
And also for malwares to make sure all clean.
Does you have other users with admin accounts on this machine?.
HTH.
let us know.
nass
===
www.nasstec.co.uk

 

[Guest]

Then you don't have the GPO, but try this:
Open a run command and type in:
regedit.exe click [OK] on the registry editor Locate these Keys:
HKEY_LOCAL_MACHINE\Software\Policies\System = DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
= DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Policies\System =DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
=DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF
HTH.
Let us know.
nass

xp sp2 home

Do you have XP Home or Professional, you look like using Home, am I right?.
Let us know which version you have.
nass

my run command does not find file gpedit.msc-is it correct? Not finding any
viruses- Norton

:



:

I am the administrator and can't figure out how to enable it. I never
disabled it that I know of but can't do the 3 finger salute anymore. Thanks

Try this:
Open a run command and type in:
gpedit.msc click [ON]
On the group policy click on under User Cofiguration:
[&] Administrative Templates
[-] System
CTRL+ ALT+ Del Options =
Remove Taks Manager make sure it is n't configured or change the
settings to Disable.

Also under Computer configuration make sure this option is disabled:
[&] Computer Configuration
[-] Administrative Templates
[-] System

System Restore = Turn Off system restore

As will mentioned with respect to the greater opinion, you may be infected
and the virus taken control on your machine and assign itself as admin and
denied you any access or control on this machine, try to scan with whichever
software you have in both safe mode and Normal mode and also scan from an
on-line scanners to get better idea on how much your AV doing its job.
And also for malwares to make sure all clean.
Does you have other users with admin accounts on this machine?.
HTH.
let us know.
nass
===
www.nasstec.co.uk

 

[Guest]

The 4th got me to task mnger Data value showed # 1

Then you don't have the GPO, but try this:
Open a run command and type in:
regedit.exe click [OK] on the registry editor Locate these Keys:
HKEY_LOCAL_MACHINE\Software\Policies\System = DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
= DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Policies\System =DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
=DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF
HTH.
Let us know.
nass

xp sp2 home

Do you have XP Home or Professional, you look like using Home, am I right?.
Let us know which version you have.
nass

:

my run command does not find file gpedit.msc-is it correct? Not finding any
viruses- Norton

:



:

I am the administrator and can't figure out how to enable it. I never
disabled it that I know of but can't do the 3 finger salute anymore. Thanks

Try this:
Open a run command and type in:
gpedit.msc click [ON]
On the group policy click on under User Cofiguration:
[&] Administrative Templates
[-] System
CTRL+ ALT+ Del Options =
Remove Taks Manager make sure it is n't configured or change the
settings to Disable.

Also under Computer configuration make sure this option is disabled:
[&] Computer Configuration
[-] Administrative Templates
[-] System

System Restore = Turn Off system restore

As will mentioned with respect to the greater opinion, you may be infected
and the virus taken control on your machine and assign itself as admin and
denied you any access or control on this machine, try to scan with whichever
software you have in both safe mode and Normal mode and also scan from an
on-line scanners to get better idea on how much your AV doing its job.
And also for malwares to make sure all clean.
Does you have other users with admin accounts on this machine?.
HTH.
let us know.
nass
===
www.nasstec.co.uk

 

[Guest]

Try to see what running processes here:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run =
Write them down and you can send them in your next post.

Also try to make the Value ="1" not "#1"

Also open the run command and type in:
taskman.exe click [OK] what you have [ admin doesn't allow this feature?]
HTH.
nass

The 4th got me to task mnger Data value showed # 1

Then you don't have the GPO, but try this:
Open a run command and type in:
regedit.exe click [OK] on the registry editor Locate these Keys:
HKEY_LOCAL_MACHINE\Software\Policies\System = DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
= DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Policies\System =DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
=DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF
HTH.
Let us know.
nass

xp sp2 home

:


Do you have XP Home or Professional, you look like using Home, am I right?.
Let us know which version you have.
nass

:

my run command does not find file gpedit.msc-is it correct? Not finding any
viruses- Norton

:



:

I am the administrator and can't figure out how to enable it. I never
disabled it that I know of but can't do the 3 finger salute anymore. Thanks

Try this:
Open a run command and type in:
gpedit.msc click [ON]
On the group policy click on under User Cofiguration:
[&] Administrative Templates
[-] System
CTRL+ ALT+ Del Options =
Remove Taks Manager make sure it is n't configured or change the
settings to Disable.

Also under Computer configuration make sure this option is disabled:
[&] Computer Configuration
[-] Administrative Templates
[-] System

System Restore = Turn Off system restore

As will mentioned with respect to the greater opinion, you may be infected
and the virus taken control on your machine and assign itself as admin and
denied you any access or control on this machine, try to scan with whichever
software you have in both safe mode and Normal mode and also scan from an
on-line scanners to get better idea on how much your AV doing its job.
And also for malwares to make sure all clean.
Does you have other users with admin accounts on this machine?.
HTH.
let us know.
nass
===
www.nasstec.co.uk

 

[Guest]

Before trying this fix see the Norton configuration, go through them if
someone messed this configuration can deny you the access to the Task manager
by disable it in Norton Firewall.

Then see this fix:
http://www.kellys-korner-xp.com/xp_tweaks.htm
Line 113 First column.
HTH.
nass

Try to see what running processes here:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run =
Write them down and you can send them in your next post.

Also try to make the Value ="1" not "#1"

Also open the run command and type in:
taskman.exe click [OK] what you have [ admin doesn't allow this feature?]
HTH.
nass

The 4th got me to task mnger Data value showed # 1

Then you don't have the GPO, but try this:
Open a run command and type in:
regedit.exe click [OK] on the registry editor Locate these Keys:
HKEY_LOCAL_MACHINE\Software\Policies\System = DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
= DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Policies\System =DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
=DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF
HTH.
Let us know.
nass

:

xp sp2 home

:


Do you have XP Home or Professional, you look like using Home, am I right?.
Let us know which version you have.
nass

:

my run command does not find file gpedit.msc-is it correct? Not finding any
viruses- Norton

:



:

I am the administrator and can't figure out how to enable it. I never
disabled it that I know of but can't do the 3 finger salute anymore. Thanks

Try this:
Open a run command and type in:
gpedit.msc click [ON]
On the group policy click on under User Cofiguration:
[&] Administrative Templates
[-] System
CTRL+ ALT+ Del Options =
Remove Taks Manager make sure it is n't configured or change the
settings to Disable.

Also under Computer configuration make sure this option is disabled:
[&] Computer Configuration
[-] Administrative Templates
[-] System

System Restore = Turn Off system restore

As will mentioned with respect to the greater opinion, you may be infected
and the virus taken control on your machine and assign itself as admin and
denied you any access or control on this machine, try to scan with whichever
software you have in both safe mode and Normal mode and also scan from an
on-line scanners to get better idea on how much your AV doing its job.
And also for malwares to make sure all clean.
Does you have other users with admin accounts on this machine?.
HTH.
let us know.
nass
===
www.nasstec.co.uk

 

[Guest]

Run = optionalComponents which listed 3 items: IMAIL = 1, MAPI = 1, MSFS = 1.
When I tried to run taskman.exe, The run window just disapeared without
searching. 1 was displayed, not #1. Thanks

Try to see what running processes here:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run =
Write them down and you can send them in your next post.

Also try to make the Value ="1" not "#1"

Also open the run command and type in:
taskman.exe click [OK] what you have [ admin doesn't allow this feature?]
HTH.
nass

The 4th got me to task mnger Data value showed # 1

Then you don't have the GPO, but try this:
Open a run command and type in:
regedit.exe click [OK] on the registry editor Locate these Keys:
HKEY_LOCAL_MACHINE\Software\Policies\System = DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
= DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Policies\System =DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
=DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF
HTH.
Let us know.
nass

:

xp sp2 home

:


Do you have XP Home or Professional, you look like using Home, am I right?.
Let us know which version you have.
nass

:

my run command does not find file gpedit.msc-is it correct? Not finding any
viruses- Norton

:



:

I am the administrator and can't figure out how to enable it. I never
disabled it that I know of but can't do the 3 finger salute anymore. Thanks

Try this:
Open a run command and type in:
gpedit.msc click [ON]
On the group policy click on under User Cofiguration:
[&] Administrative Templates
[-] System
CTRL+ ALT+ Del Options =
Remove Taks Manager make sure it is n't configured or change the
settings to Disable.

Also under Computer configuration make sure this option is disabled:
[&] Computer Configuration
[-] Administrative Templates
[-] System

System Restore = Turn Off system restore

As will mentioned with respect to the greater opinion, you may be infected
and the virus taken control on your machine and assign itself as admin and
denied you any access or control on this machine, try to scan with whichever
software you have in both safe mode and Normal mode and also scan from an
on-line scanners to get better idea on how much your AV doing its job.
And also for malwares to make sure all clean.
Does you have other users with admin accounts on this machine?.
HTH.
let us know.
nass
===
www.nasstec.co.uk

 

[Guest]

Sorry, you can you change the Value to Zer not "1".
Again, i messed it up:
Value = 0 Enabled
Value = 1 Disabled
Hope this help.
Let us know.
nass

Run = optionalComponents which listed 3 items: IMAIL = 1, MAPI = 1, MSFS = 1.
When I tried to run taskman.exe, The run window just disapeared without
searching. 1 was displayed, not #1. Thanks

Try to see what running processes here:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run =
Write them down and you can send them in your next post.

Also try to make the Value ="1" not "#1"

Also open the run command and type in:
taskman.exe click [OK] what you have [ admin doesn't allow this feature?]
HTH.
nass

The 4th got me to task mnger Data value showed # 1

:


Then you don't have the GPO, but try this:
Open a run command and type in:
regedit.exe click [OK] on the registry editor Locate these Keys:
HKEY_LOCAL_MACHINE\Software\Policies\System = DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
= DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Policies\System =DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
=DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF
HTH.
Let us know.
nass

:

xp sp2 home

:


Do you have XP Home or Professional, you look like using Home, am I right?.
Let us know which version you have.
nass

:

my run command does not find file gpedit.msc-is it correct? Not finding any
viruses- Norton

:



:

I am the administrator and can't figure out how to enable it. I never
disabled it that I know of but can't do the 3 finger salute anymore. Thanks

Try this:
Open a run command and type in:
gpedit.msc click [ON]
On the group policy click on under User Cofiguration:
[&] Administrative Templates
[-] System
CTRL+ ALT+ Del Options =
Remove Taks Manager make sure it is n't configured or change the
settings to Disable.

Also under Computer configuration make sure this option is disabled:
[&] Computer Configuration
[-] Administrative Templates
[-] System

System Restore = Turn Off system restore

As will mentioned with respect to the greater opinion, you may be infected
and the virus taken control on your machine and assign itself as admin and
denied you any access or control on this machine, try to scan with whichever
software you have in both safe mode and Normal mode and also scan from an
on-line scanners to get better idea on how much your AV doing its job.
And also for malwares to make sure all clean.
Does you have other users with admin accounts on this machine?.
HTH.
let us know.
nass
===
www.nasstec.co.uk

 

[Guest]

NASS, thanks so much. The 3 finger salute is now back in service. You showed
me more depth of this computer than I have ever seen. Way over my pay scale.
The online fix was only 150 bytes so it must have been a minor glitch. Thanks
again, Dave

Before trying this fix see the Norton configuration, go through them if
someone messed this configuration can deny you the access to the Task manager
by disable it in Norton Firewall.

Then see this fix:
http://www.kellys-korner-xp.com/xp_tweaks.htm
Line 113 First column.
HTH.
nass

Try to see what running processes here:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run =
Write them down and you can send them in your next post.

Also try to make the Value ="1" not "#1"

Also open the run command and type in:
taskman.exe click [OK] what you have [ admin doesn't allow this feature?]
HTH.
nass

The 4th got me to task mnger Data value showed # 1

:


Then you don't have the GPO, but try this:
Open a run command and type in:
regedit.exe click [OK] on the registry editor Locate these Keys:
HKEY_LOCAL_MACHINE\Software\Policies\System = DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
= DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Policies\System =DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
=DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF
HTH.
Let us know.
nass

:

xp sp2 home

:


Do you have XP Home or Professional, you look like using Home, am I right?.
Let us know which version you have.
nass

:

my run command does not find file gpedit.msc-is it correct? Not finding any
viruses- Norton

:



:

I am the administrator and can't figure out how to enable it. I never
disabled it that I know of but can't do the 3 finger salute anymore. Thanks

Try this:
Open a run command and type in:
gpedit.msc click [ON]
On the group policy click on under User Cofiguration:
[&] Administrative Templates
[-] System
CTRL+ ALT+ Del Options =
Remove Taks Manager make sure it is n't configured or change the
settings to Disable.

Also under Computer configuration make sure this option is disabled:
[&] Computer Configuration
[-] Administrative Templates
[-] System

System Restore = Turn Off system restore

As will mentioned with respect to the greater opinion, you may be infected
and the virus taken control on your machine and assign itself as admin and
denied you any access or control on this machine, try to scan with whichever
software you have in both safe mode and Normal mode and also scan from an
on-line scanners to get better idea on how much your AV doing its job.
And also for malwares to make sure all clean.
Does you have other users with admin accounts on this machine?.
HTH.
let us know.
nass
===
www.nasstec.co.uk

 

[Guest]

Glad you got it fixed, here another step to make sure nothing lurking in the
background:
Scan for malwares from here:
http://www.lavasoft.com/products/ad-aware_se_personal.php
http://www.safer-networking.org ; for Spybot S&D
HTH.
Regards,
nass

NASS, thanks so much. The 3 finger salute is now back in service. You showed
me more depth of this computer than I have ever seen. Way over my pay scale.
The online fix was only 150 bytes so it must have been a minor glitch. Thanks
again, Dave

Before trying this fix see the Norton configuration, go through them if
someone messed this configuration can deny you the access to the Task manager
by disable it in Norton Firewall.

Then see this fix:
http://www.kellys-korner-xp.com/xp_tweaks.htm
Line 113 First column.
HTH.
nass

Try to see what running processes here:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run =
Write them down and you can send them in your next post.

Also try to make the Value ="1" not "#1"

Also open the run command and type in:
taskman.exe click [OK] what you have [ admin doesn't allow this feature?]
HTH.
nass

:

The 4th got me to task mnger Data value showed # 1

:


Then you don't have the GPO, but try this:
Open a run command and type in:
regedit.exe click [OK] on the registry editor Locate these Keys:
HKEY_LOCAL_MACHINE\Software\Policies\System = DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
= DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Policies\System =DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
=DisableTaskMgr
Value = 1 mean it is ON
Value = 0 it means it is OFF
HTH.
Let us know.
nass

:

xp sp2 home

:


Do you have XP Home or Professional, you look like using Home, am I right?.
Let us know which version you have.
nass

:

my run command does not find file gpedit.msc-is it correct? Not finding any
viruses- Norton

:



:

I am the administrator and can't figure out how to enable it. I never
disabled it that I know of but can't do the 3 finger salute anymore. Thanks

Try this:
Open a run command and type in:
gpedit.msc click [ON]
On the group policy click on under User Cofiguration:
[&] Administrative Templates
[-] System
CTRL+ ALT+ Del Options =
Remove Taks Manager make sure it is n't configured or change the
settings to Disable.

Also under Computer configuration make sure this option is disabled:
[&] Computer Configuration
[-] Administrative Templates
[-] System

System Restore = Turn Off system restore

As will mentioned with respect to the greater opinion, you may be infected
and the virus taken control on your machine and assign itself as admin and
denied you any access or control on this machine, try to scan with whichever
software you have in both safe mode and Normal mode and also scan from an
on-line scanners to get better idea on how much your AV doing its job.
And also for malwares to make sure all clean.
Does you have other users with admin accounts on this machine?.
HTH.
let us know.
nass
===
www.nasstec.co.uk