Drive failure question

Windows 2000 OS -- used to run an instrument in lab setting. Have code, but company provided an image disk to restore a new disk -- not the OS CD itself. Drive is giving BSOD -- and suggests running checkdsk /F.

Question Can I get an CD with OS from microsoft at minimal charge, since I have the code?

Also -- the reason I want is there are important files on the hard drive. Can I boot off of a 2000 CD and run a recovery console, similar to what is in XP. That would give me a chance to repair the HD and perhaps save the files?

Thanks
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