Recently, I found myself unable to connect to the internet on my home computer (I'm posting from my laptop). When I try to "troubleshoot problems" from the system tray, I am told "The Diagnostics Policy Service is not running." I am given the option to "Try these repairs as an administrator". However, no changes are made when I do.
The service is set to automatic. If I try to start it in MMC, I am given the error:
"Windows could not start the Diagnostic Policy Service service on Local Computer
Error 5: Access is denied"
In addition to this, Windows Action Center began displaying an alert that the Windows Firewall is off. If I try to start it, I am given the error "Action Center can't turn on Windows Firewall." If I try the option "Turn on Windows Firewall manually", and click "Use recommended settings", I am given the error:
"Windows Firewall can't change some of your settings.
Error code 0x8007042c"
At this point, I suspected a virus might be possible, so I ran Avast! (Free). The results said windows\syswow\64\wdi\perftrack\AltTab.ptxml was posibly corrupt, but found no viruses.
I tried to run system restore, but I was given the error:
"The disk Local Disk (C:) has errors.
Windows has detected file system corruption on Local Disk (C:). You must check the disk for errors before it can be restored."
I scheduled a chkdsk scan for next reboot, and restarted. (I distinctly recall seeing windows\syswow\64\wdi\perftrack\AltTab.ptxml during the scan. This was also found when I scanned earlier with Avast! I'm not sure how relevant this is, but I felt I should mention just in case). Afterwards, I was able to get System Restore to run. After rebooting, I received the error:
"System Restore did not complete successfully. Your computer's system files and settings were not changed.
Details: System Restore failed while scanning the file system on the drive C:\
The drive might be corrupt. You might want to retry System Restore after running chkdsk /R on this disk.
An unspecified error occurred during System Restore. (0x80070057)"
I ran a chkdsk /R and no problems were found. I tried System Restore again, and received the same error as before.
I'm not sure where to go from here. Any help would be greatly appreciated.
Edited by hamluis, 28 April 2012 - 03:43 PM.
Moved from Win 7 to Am I Infected - Hamluis.