As to your original question I think saving for a new build would be the best course of action tbh,
The error could be caused by several things apparently, I've not had to deal with this one before but several sites state it could be caused by a keyboard error, namely a short in the cable somewhere, can you try a different keyboard?
Also hdd corruption is cited as a cause, have you run check disk?
Other possible causes are listed as:
Corrupt boot.ini file.
Missing boot.ini file.
Missing or corrupt ntoskrnl.exe file (well duh, that's pretty much a gimme ffs LOL
With you reinstalling each time i doubt it is the boot.ini as you would rewrite it each time you reinstalled.