Hello,
Thanks for your post and appreciate Rich's helpful information.
If the issue only occurs these days, you can use system restore to recover
the system and get the former registry when the restore was accomplished.
First, please help me confirm the issue so that we can isolate the problem:
1. You mentioned that you are trying to install SP2 on an XP Home machine
and it appears the registry may be corrupted.
Do you mean when trying to install SP2 on an XP Home and SP2 cannot be
installed and give the errors about registry has been corrupted? If so,
could you help me to collect the detailed error information or get a screen
shot of it and send to me at (e-mail address removed)?
2. You cannot even access the keys by using regedit and get an error of
access denied when SP2 tries to backup the keys. Same please help me to
collect the error information.
3. You mentioned HKCR DirectPlay8 keys. Do you mean only this key cannot
access or all the other keys in registry cannot access either?
4. Does the user is an administrator?
After these request and questions, I would give my suggestions on this
issue:
1. You can change another user which is administrator to check again.
2. Log on as an administrator, go to registry and right-click on the keys
those cannot be accessed and choose Permissions, give Full Control
permission.
4. You can download the SP2 and install it under Safe Mode to check if the
issue still persists.
A. Download SP2 from:
Download the full installation package of Windows XP Service Pack 2
<
http://www.microsoft.com/downloads/details.aspx?FamilyId=049C9DBE-3B8E-4F30
-8245-9E368D3CDB5A&displaylang=en>
Order Windows XP Service Pack 2 on CD
<
http://www.microsoft.com/windowsxp/downloads/updates/sp2/cdorder/en_us/defa
ult.mspx>
B. Install under Safe Mode
I suggest we restart the computer in the Safe Mode to see if the problem
also occurs in the mode which loads a minimal protected-mode configuration,
disabling Windows device drivers and using the standard VGA display
adapter.
a. Restart the computer.
b. Keep press F8 key until the Windows Startup menu appears.
c. Choose the Safe Mode, and press Enter.
d. Install SP2 and check the issue again.
Note: In the Safe Mode, your system display and Desktop will look and
perform differently than in Normal Mode. This is only temporary.
5. Log on as an administrator and you can use the following tool called
Subinacl to fulfill the function to reset the permissions. SubInACL is a
command-line tool that enables administrators to obtain security
information about files, registry keys, and services.
A. Download and install Subinacl from:
http://www.microsoft.com/downloads/details.aspx?FamilyID=e8ba3e56-d8fe-4a91-
93cf-ed6985e3927b&displaylang=en
B. Create a file named reset.cmd in C:\Program Files\Windows Resource
Kits\Tools folder.
C. Edit the reset.cmd file with the following content.
subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=administrators=f
subinacl /subkeyreg HKEY_CURRENT_USER /grant=administrators=f
subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=administrators=f
subinacl /subdirectories %SystemDrive% /grant=administrators=f
subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=system=f
subinacl /subkeyreg HKEY_CURRENT_USER /grant=system=f
subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=system=f
subinacl /subdirectories %SystemDrive% /grant=system=f
D. Enter into CMD prompt.
E. Enter the following commands one at a time and click Enter.
cd\
cd "C:\Program Files\Windows Resource Kits\Tools"
reset.cmd
F. After a few minutes by processing subinacl, please test the problem
again.
Hope that helps. If there is anything unclear, please feel free to contact
us. It's my pleasure to be of assistance.
Thanks & Regards
Amanda Wang [MSFT]
Microsoft Online Partner Support
Get Secure! -
www.microsoft.com/security
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