Try pressing Windows + R and then typing in rstrui.exe before pressing Enter. If it's properly registered it'll launch, even though files in the system folders do not, by default, show up in a file search. If the file is actually missing, run System File Checker and have your Vista DVD ready in case it needs to replace system files from disc.
As to the DVD, System Restore is available as a "Repair my computer" option on the retail discs. If you have a manufacturer's recovery system from HP/Dell/Gateway/etc. it will most likely not be available as an option.
Hope this helps,
Hello, I recently installed windows vista ultimate but there is not system restore,of course I ve checked everywhere is NoWhere.
rstrui.exe is nowhere
I ve booted from dvd its not there as well.
How can I install system restore?