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#11
"There is probably a value in the registry called "DisableConfig" at HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\SystemRestore. Open regedit, browse to that key, and if the "DisableConfig" value exists, delete it and reboot the PC. You should get your System Restore tab back after doing this. "
I went to this location in the registry and found the DisableSR key. I deleted it, as I had nothing to lose (next step was reload Win7).
It worked straight away and all is now good. Encourage mremaknu to do the same.
Cheers,
Bourbasted