Disclaimer:
I am not responsible for any damaged caused by use or misuse of the following information and I cannot be held liable for anything. Use at your own risk!
Go to control panel, select performance and maintinance, then at the left side of the window choose system restore.
Choose the 'restore to earlier time' option and select when your game was last working and choose it. Your computer will go into a system restore screen with a loading bar. At this point do NOTHING!
Wait for your computer to start up once it has done this go to where your game was saved and copy the undamaged game to a usb memory stick or a floppy if your old fashioned enough! (No Offence) Don't forget to unplug your usb drive or take out your floppy disk once you are done!
Then Go back to control panel and select 'undo your last restoration' which takes you back to where you were but now you have a copy of your game when it was still working on a usb drive which you can put on your computer (I'd keep a backup of the one that didn't work just out of paranoia)
Hope you enjoy this tip - system restore is one of the greatest things about windows - there might be a mac equivelent - just look around
Good Luck,
Fox
Note 1: Do not mess around with system restore - if missused it can mess your computer up!
Note 2: This is easiest if you set 'create a system restore point' as a scheduled task to be completed frequently.
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