Open Windows store with blank screen issue

I'm in the middle of a struggle with blank screen issue, possibly corrupted exlorer.exe file (won't run). Wanted to try update from 8-8.1 but the Windows Store won't show up with the blank screen issue. Any thoughts on resolutions? I've done several malware, adware scans and antivirus scans. Everything comes back clear. Also, tried adding a new user acct, but get an error message and can't add. Thought the update might replace the needed files. SFC scan return non-fixable errors.
Thoughts would be great! Thanks.

Hello thb, and welcome to Eight Forums.

See if doing what's in the blue note box at the bottom of OPTION TWO in the tutorial below may allow SFC to repair the files afterwards.

http://www.eightforums.com/tutorials/3047-sfc-scannow-command-run-windows-8-a.html

If that still doesn't help with your Store, then see if going through the listed items in the tutorial below may.

http://www.eightforums.com/tutorials/21051-apps-tiles-not-working-responding-fix-windows-8-a.html

Hope this helps for now,
Shawn

Ran SFC scan 3 times with restarts. Still get cant repair error. Try using the DISM and get error #87. online/cleanup...etc not recognized.
Can't open the power user items, due to black screen.
May be stuck with a "refresh" trying to avoid that option because of slow DSL and downloading all my apps.

What are you typing for DSIM? Sounds like a misspelling or a missing space. Try copy/paste this to an elevated command prompt.

Dism /Online /Cleanup-Image /RestoreHealth

http://www.eightforums.com/tutorials/26512-dism-fixing-component-store-corruption-windows-8-a.html