I recently took a hard drive from a Windows 7 HP laptop and installed it into an old Dell 745 Optiplex computer that I bought for cheap at a salvage store. I know it is not recommended, but I wanted to see what would happen if I just booted up the computer and used Startup Repair to run my programs on the new Dell computer.
The process actually worked, and the computer seems to run well. However I have an interesting problem. I downloaded some pdf files onto a portable USB drive on the Dell, and afterwards I moved the portable drive to a different computer. The files were not showing up on the portable drive at all (it was like I never downloaded them). I did a "disk repair" on the portable drive, and now the files appear, but Adobe Reader says the files are corrupted and I cannot open them. I tried to save a powerpoint file in the same fashion and it was ok.
Is there something about the Startup Repair process that would cause the operating system to corrupt certain files? If I formatted the Optiplex and installed a fresh copy of Windows, would it solve the problem? I don't know a lot about this salvaged computer so I guess I'm also looking for some advice as to what problems it could have that I'm not aware of. Thanks in advance for your help.