My Windows 7 x64 computer wouldn't boot this morning (I have since realized that it is because of an AVG Antivirus update from last night: http://product-team.blog.avg.com/2010/12/avg-fix-for-computers-running-on-windows-7-64-bit-platform.html)
Windows attempted to do a 'Startup Repair', but it failed. In reviewing the log of that attempt, I noticed that it had the system path as D:\Windows. It should be C:\Windows. There has never been a D drive!
So I performed a system restore and the computer now boots but it seems to have serious permission problems (I restored to various restore points with the same results). The following are some of the issues I'm seeing - they all seem to point to permissions to me.
I tried to open a command prompt and it says, "Windows cannot find 'cmd'. Make sure you typed the name correctly and try again." So I went looking for cmd.exe - I navigated to c:\windows and it says, "You don't currently have permission to access this folder. Click continue to permanently get access to this folder." I clicked continue and can now open cmd.exe.
I get that "You don't currently have permission..." message on many folders including c:\users\.
Windows won't save my changes to folder options.
If I am able to launch a program and I click 'pin this program to the start menu' nothing happens.
I get the same issues on newly created users even if they are administrators!
Any suggestions would be appreciated.