Computer has been crashing for months!?

I agree with the others- its either, and, or, HDD or OS issue.

I would really consider if I really needed windows at all.

If you do- then you need to isolate the issue to software or hardware and fix it.

If you don't- you might want to try Linux Mint or Ubuntu.....they are free to download....and you never have any more windows issues at all. I haven't had one in 9 years not,- on several computers. Linux is just too easy to use, and hassle free.

Hard disk error is a hardware error. Repair, Renew or replace.

The store exception is a corrupt Windows Store cache file in your AppData folder. It gets corrupt sometimes from updates. The file can be deleted and Windows will rebuild it. I can't find my bookmark for how to find it and delete it right now. Look in Event Viewer, it might give you the file location on your system. Or google that error.

Also, schedule a chkdsk /f at your next startup, let it run no matter how long it takes, it will fix your crashes. Those crashes are usually from a corrupt master file table.

If any automatic CPU or GPU overclocking operations are present, disable them.

Restart the computer and run the memory diagnostic — see http://www.thewindowsclub.com/windows-memory-diagn...

Memory errors usually mean failing RAM, but may also indicate overly aggressive RAM timings.  Configure the BIOS settings to use the most conservative values.

Try temporarily uninstalling your antivirus software.  If this resolves the problem, use an antivirus product from another vendor.

The hint is in the error message. It looks like your hard-drive is f**ked.

Save what data you can to an external hard-drive and/or thumb drive, buy a new HD, get rid of the defective HD, and re-install Windows.