Section 1: Start your computer in Safe Mode with Command Prompt
Start the computer in Safe Mode with Command Prompt so that you make needed
changes to the Windows registry.
To start your computer in Safe Mode with Command Prompt
1. Restart your computer.
2. At the black screen, press the F8 key.
3. In the Windows Advanced Options menu, press the arrow keys to
highlight Safe Mode with Command Prompt.
4. Press Enter.
5. Go to Section 2.
Section 2: Adjust permissions to the Windows registry
In this section, adjust permissions to both the HKEY_CLASS_ROOT and the
HKEY_LOCAL_MACHINE registry keys. Follow all of the instructions in this
section to adjust permissions of these registry keys in the same order.
1. To adjust permissions to the Windows HKEY_USERS registry key
1. On the black screen type:
regedit
2. Press Enter.
3. In the registry editor, right-click HKEY_USERS.
4. In the drop-down menu, click Permissions.
5. In the Permissions for HKEY_USERS dialog box, on the Security Tab,
find the upper panel titled Groups or user names.
6. Click to highlight SYSTEM.
7. Locate the lower panel titled Permissions for SYSTEM.
8. In the Permissions for SYSTEM panel, under Full Control, check
Allow.
9. In the upper panel titled Groups or user names, click to highlight
Administrators.
10. In the Permissions for Administrators panel, under Full Control, check
Allow.
11. Click Advanced.
12. In the Advanced Security Settings for HKEY_USERS dialog box, under
Permissions entries, click to highlight SYSTEM.
13. Check Inherit from parent the permission entries that apply to child
objects. Include these entries explicitly defined here.
14. In the Advanced Security Settings for HKEY_USERS dialog box, under
Permissions entries, click to highlight Administrators.
15. Check Inherit from parent the permission entries that apply to child
objects. Include these entries explicitly defined here.
16. Click Apply > OK.
17. In the Permissions for HKEY_USERS dialog box, on the Security Tab,
click OK.
2. To adjust permissions to the Windows HKEY_LOCAL_MACHINE registry key
1. In the registry editor, right-click HKEY_LOCAL_MACHINE.
2. In the drop-down menu, click Permissions.
3. In the Permissions for HKEY_LOCAL_MACHINE dialog box, on the
Security Tab, find the upper panel titled Groups or user names.
4. Click to highlight SYSTEM.
5. Locate the lower panel titled Permissions for SYSTEM.
6. In the Permissions for SYSTEM panel, under Full Control, check
Allow.
7. In the upper panel titled Groups or user names, click to highlight
Administrators.
8. In the Permissions for Administrators panel, under Full Control,
check Allow.
9. Click Advanced.
10. In the Advanced Security Settings for HKEY_LOCAL_MACHINE dialog box,
under Permissions entries, click to highlight SYSTEM.
11. Check Inherit from parent the permission entries that apply to child
objects. Include these entries explicitly defined here.
12. In the Advanced Security Settings for HKEY_LOCAL_MACHINE dialog box,
under Permissions entries, click to highlight Administrators.
13. Check Inherit from parent the permission entries that apply to child
objects. Include these entries explicitly defined here.
14. Click Apply > OK.
15. In the Permissions for HKEY_LOCAL_MACHINE dialog box, on the Security
Tab, click OK.
3. To adjust permissions to the Windows HKEY_CURRENT_USER registry key
1. In the registry editor, right-click HKEY_CURRENT_USER.
2. In the drop-down menu, click Permissions.
3. In the Permissions for HKEY_CURRENT_USER dialog box, on the Security
Tab, find the upper panel titled Groups or user names.
4. Click to highlight SYSTEM.
5. Locate the lower panel titled Permissions for SYSTEM.
6. In the Permissions for SYSTEM panel, under Full Control, check Allow.
7. In the upper panel titled Groups or user names, click to highlight
Administrators.
8. In the Permissions for Administrators panel, under Full Control, check
Allow.
9. Click Advanced.
10. In the Advanced Security Settings for HKEY_CURRENT_USER dialog box,
under Permissions entries, click to highlight SYSTEM.
11. Check Inherit from parent the permission entries that apply to child
objects. Include these entries explicitly defined here.
12. In the Advanced Security Settings for HKEY_CURRENT_USER dialog box,
under Permissions entries, click to highlight Administrators.
13. Check Inherit from parent the permission entries that apply to child
objects. Include these entries explicitly defined here.
14. Click Apply > OK.
15. In the Permissions for HKEY_CURRENT_USER dialog box, on the Security
Tab, click OK.
4. To adjust permissions to the Windows HKEY_CLASSES_ROOT registry key
1. In the registry editor, right-click HKEY_CLASSES_ROOT.
2. In the drop-down menu, click Permissions.
3. In the Permissions for HKEY_CLASSES_ROOT dialog box, on the Security
Tab, find the upper panel titled Groups or user names.
4. Click to highlight SYSTEM.
5. Locate the lower panel titled Permissions for SYSTEM.
6. In the Permissions for SYSTEM panel, under Full Control, check Allow.
7. In the upper panel titled Groups or user names, click to highlight
Administrators.
8. In the Permissions for Administrators panel, under Full Control, check
Allow.
9. Click Advanced.
10. In the Advanced Security Settings for HKEY_CLASSES_ROOT dialog box,
under Permissions entries, click to highlight SYSTEM.
11. Check Inherit from parent the permission entries that apply to child
objects. Include these entries explicitly defined here.
12. In the Advanced Security Settings for HKEY_CLASSES_ROOT dialog box,
under Permissions entries, click to highlight Administrators.
13. Check Inherit from parent the permission entries that apply to child
objects. Include these entries explicitly defined here.
14. Click Apply > OK.
15. In the Permissions for HKEY_CLASSES_ROOT dialog box, on the Security
Tab, click OK.
Important: Ensure you are giving permissions to HKEY_CLASSES_ROOT at last
after completing first three.
S.Sengupta said:
Check it here:-
http://www.dougknox.com/xp/file_assoc.htm
regards,
S.Sengupta[MS-MVP]
I was installing Norton Internet Security. The installation failed and
it must have messed up my registry because now I can not open anything.
I wanted to try a System Restore, but I can't get that to open either.
The only programs that seem to work are my browser and email.
This is the same problem as described in a previous message:
Ad-ware SE Plus, or its adwatch detected a problem with my system
registry. I
guess I must have clicked the wrong button, by now I can only access
few
shortcuts - w/ a prompt that states that an in particular file does not
have
a program associated with it. I can't use help and support, open
executables,
add or remove programs in the CP, etc. Please help to at least get me
back
where I can open executables. I plan to upgrade to XP Pro, but I can't
run
certain chipset identity utilities, SCSI utilities, etc, that I need to
use
prior to this due to my
problem. Thank you!
Someone else responded with this message:
EXE and LNK Fix for Windows XP - Line 12
http://www.kellys-korner-xp.com/xp_tweaks.htm
To use the Regedit: Save the REG File to your hard disk. Double click
it
and answer yes to the import prompt. REG files can be viewed in Notepad
by
right clicking on the file and selecting Edit.
I saved the REG file, but when I double click it, noting happens. Is
this the answer? How do I make it work?
