Is this a HP problem or is it a Microsoft problem?

OK so for a long while now I've experienced not being able to open the Store on my HP laptop with windows 8. I'm trying to upgrade from 8 to 8.1 but I haven't been able to because Store doesn't open. I would love to fix this problem because it has been affecting other apps I use. Am I able to get help from windows or do I need to ask a HP forums??

 

1. Are all Windows Updates installed. ?
2. If yes to #1, please do a system file check.... sfc /scannow.

How ?
go to charmbar ( windows key + C key ) > click the search icon > in the search box, type cmd.exe > right click at cmd.exe > select Run as administrator > at the flashing prompt, copy/paste this command.......
sfc /scannow

press Enter key > sit back and wait. Will take quite a while.
At the end, it will say one of the followings : ( paraphrasing)
No integrity violation.
or,
Found corrupt files but unable to repair.

If it finds corrupt files but unable to repair...........
in the same cmd window, at the flashing prompt, copy/paste this command......
DISM /Online /Cleanup-Image /RestoreHealth
press Enter > wait. Will also take some time.

At the end it will give you the result.
If it says it has successfully done the repair, then try opening the Windows Store.

 

Thank you so very much! My laptop is working now and I've gotten 8.1!

 

Run wsreset.exe from the Windows 8 search box