Windows 8.1 apps

I recently re-installed windows 8.1 and none of the windows apps work - they just hang.
I have used the sundry tools recommended by other web users - no luck.
Any help will be appreciated

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 8.1 Single Language, 64 bit
Processor: Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz, Intel64 Family 6 Model 69 Stepping 1
Processor Count: 4
RAM: 8122 Mb
Graphics Card: Intel(R) HD Graphics Family, -2016 Mb
Hard Drives: C: Total - 433523 MB, Free - 369910 MB; D: Total - 19300 MB, Free - 2158 MB; F: Total - 499998 MB, Free - 414468 MB;
Motherboard: Hewlett-Packard, 2282
Antivirus: Windows Defender, Disabled Avast in use