Windows 10 issue after upgrading from Win 7

[Wolther]

At random, the start menu would randomly just stop working. It works after I restart the computer, but after some use it just randomly won't open. A few other things won't open at the sametime this happens, like the calendar, Cortana, etc. 

I've looked up fixes like the powershell command 

Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}

but it still just doesn't work, has anyone had this issue and found a fix to it?

[AcidReactionz]

The best way to repair problems like this is to fresh install windows 10. Its annoying but I had a crash problem and fresh installing fixed it.

[Wolther]

The best way to repair problems like this is to fresh install windows 10. Its annoying but I had a crash problem and fresh installing fixed it.

Okay, I will try it, thanks.

[Pinkamena]

Fresh install didnt help for me, problem came back after a few days...

[Wolther]

Fresh install didnt help for me, problem came back after a few days...

I found something that fixed it for me. Some Anti-Virus programs are not compatible for Win 10. I'm using Avast and checked their website and it showed they have a Win 10 version. So I uninstalled and installed the Win 10 version and it's working like a charm . 

[Pinkamena]

I only use Windows Defender.. don't think that's it