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Windows 7: System Restore cannot be opened

20 Mar 2012   #1
lcc227

Window 7 Home Premium 64 bit
 
 
System Restore cannot be opened

Because a previous virus had changed my registry in a diffrerent PC where I could no longer do a restore (deleted restore points), I made this registry change to this new PC. I changed the permissions in the SystemRestore folder for users to Deny on Full Control and Read. I also made a registry backup in case something went wrong. Well something did go wrong and now I cannot do any restores even after I imported my registry backup. I get the following error: SystemRestore cannot be opened. An error is preventing this key from being opened. Details: Access is denied.

How can I undo the mess I made.

Using Windows 7 Home Premium 64bit

Is there a way to reset the permissions back to default.

Would this fix solve the problem?



You will need to run ‘Subinacl Tool’ to reset the permission to normal. To reset system permissions, follow the steps:

1. Download subinacl.msi from the following link, and save it on the desktop.
http://www.microsoft.com/downloads/details.aspx?FamilyID=e8ba3e56-d8fe-4a91-93cf-ed6985e3927b&displaylang=en#AffinityDownloads (http://www.microsoft.com/downloads/d...inityDownloads)
2. On the desktop, double-click subinacl.msi to install the tool.
3. Select C:\Windows\System32 as the destination folder.
Note This step assumes that Windows is installed in C:\Windows. If Windows is installed elsewhere, select the appropriate path to .\System32.
4. Open Notepad.
5. Copy the following commands and then paste them into the opened Notepad window.

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

6. In Notepad click File, Save As, and then type: reset.cmd
7. In Notepad click Save as type, and then select All Files (*.*).
8. Save the reset.cmdfile to your desktop, and close Notepad.
9. Double-click the reset.cmdfile to reset the Windows Update permissions.
Note This step may take several minutes, so please be patient. When the permissions have been reset, you will be prompted with "Finished, press any key to continue."
10. Press any key to complete the installation.



***Should I try this fix?***


My System SpecsSystem Spec
.
20 Mar 2012   #2
gregrocker
Microsoft MVP

 

Why would you do such a thing? Only the most advanced users should ever mess with the registry.

Since you sabotaged the best method to fix this, try changing back the permissions exactly as they were before you set about deliberately messing them up.

If this fails you can try running a Repair Install but may need to Clean Reinstall or run Factory Recovery from its partition - make the disks as a backup.
My System SpecsSystem Spec
Reply

 System Restore cannot be opened




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