Windows 7 won't boot up

Tv man

Jan 22, 2016
Windows 7 won't boot up. "Startup Repair" attempts to fix but no luck after running all night. Was able to bring up HP diagnostic.
System Restore but fails. Diagnostics also allowed me to make data backup discs (2 DVDs). I also have three recovery discs I made in 2010 when I first bought the desktop PC . I want to get a new hard drive but wish I could get this one going for a while and know how to save and use as much as possible including the operating system and original programs etc. Not sure how to proceed from here. Thanks for any help [email removed]