I am having issues booting my windows 7 (service pack 1) laptop and I have been online trying fixes for hours. Based on the evidence it seems I most likely have a corrupt ntdll.dll in my system32 folder. One forum I read said to get the file from a computer with the same installation of windows and replace it using the recovery console. I tried this, but I get the message:
The requested operation cannot be performed on a file with a user-mapped section open.
Is there any way I can replace this file?
(All my restore points failed, startup recovery failed, sfc said it fixed corrupt files, but issue persists, and diskcheck said no problems so I am really out of options)
thanks