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I am rewriting my OS (again), and I am still working on the stage 1 bootloader. NTVDM.EXE (Vista's 16-bit emulator) has worked (It is run in order to execute programs like "debug" and "PARTCOPY") up until now. Very recently, when my batch file for assembling and copying my bootloader, was running PARTCOPY.EXE, Windows alerted me that NTVDM.EXE crashed. My first instinct was to try "debug" (I didn't know what NTVDM.EXE did then), and the same error popped up. Windows, as normal, gave me no information on what actually happened. Any ideas on how to solve this?

NOTE: I have Windows Vista on the same machine as OpenSUSE(linux) 10.3. Should I compile my OS on linux instead?

Update....

Just as a test, I ran COMMAND.COM. Same error.

Another Update!

I ran sfc /scannow to see if I could fix the problem, and it said it found some corrupt files, but couldn't fix 'em.

Final Update:

I rebooted my computer recently, and it worked.