Windows 10 keep freezing/slow down start menu

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I found that avast was getting me a problem
When i turned on all shield of avast, start menu in Win10 respond lately sometimes and most of the times it won't open even. Same problem with sound, battery, wifi/network options also.

When I turn off shield and wait around 15 sec then all work perfectly fine.

Any help would be appreciated.

[bob3160]

Try the following:

Repair Avast:
Control Panel> Program and Features (Add/remove program)>Select Avast> Select Repair. Reboot when completed
https://www.avast.com/faq.php?article=AVKB204

If Repair doesn't fix the problem, try the following:
Clean Install of Avast:
https://goo.gl/4Ptzkf
If you need additional help with the Clean Install, watch this:
https://youtu.be/p-h3myRD51A

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Same issue after clean install/repair

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I have posted my question to microsoft forum
Link: https://answers.microsoft.com/en-us/windows/forum/windows_10-performance/windows-start-menu-not-working-or-it-freeze-after/c558f5bb-f854-46c7-8314-7ec92b23e02f?tm=1513135848081&auth=1

[bob3160]

I have posted my question to microsoft forum
Link: https://answers.microsoft.com/en-us/windows/forum/windows_10-performance/windows-start-menu-not-working-or-it-freeze-after/c558f5bb-f854-46c7-8314-7ec92b23e02f?tm=1513135848081&auth=1

What I find disheartening is that the answers supplied are almost always the same answers whenever we have
a problem and Microsoft can't find an immediate answer.
Just for your information, the inability to use the audio button and the notification button, etc has happened to me.
It doesn't always happen and I still haven't figured out what triggers it. Hope you get lucky and find an answer.
If you do, please pass it on.

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Okay. But keep me update also if you find any solution

[bob3160]

Okay. But keep me update also if you find any solution

Will do.
Just did the Dec. Windows updates. Sound was turned off and the button doesn't work again after the
required reboot.