Windows 8 and Avast black screen problem |SOLVED

Avast Black Screen Problem – windows 8 | solved

You might have encountered a black screen problem after installing Avast antivirus on your Windows 8 operating system. You would notice that once your account loads the screen automatically turns black and you won’t be able to see anything except a moveable cursor.

I recently encountered this problem and I didn’t have any clue as well. I tried to start a new process (explorer.exe) using task manager but looked like it was blocked as it was not appearing under the process tab.  I guessed that it could be Avast,  I’m not blaming avast personally but all antiviruses act weirdly sometimes (My past experience) . The only reason I’m using avast is because its free and also I could get a paid version for free. Want to know more? Read:  How to get Avast Internet Security 3Yr License For Free


How to solve Windows 8 black screen problem caused by Avast antivirus

  • Turn on your computer and log in
  • Once you are logged in, you would get a black screen with a moveable cursor
  • Press Ctrl + Alt + Del and open Task manager

Windows 8 Task Manager


  • Go to start-up tab and right click on Avast antivirus and click on open file location


Windows 8 startup


  • Now double click on AvastUI,  It will open the Avast Interface


avast ui


  • Go to security –> Behavior Shield —> Settings


  • avast behaviour shield


  • Click on Trusted Processes on the left and  add the below mentioned path to the list

          C:\Windows\explorer.exe  and  C:\Windows\ImmersiveControlPanel\SystemSettings.exe


Avast Trusted Process


Following this procedure will definitely help you solve the black screen problem. In case its not resolved. Go to  Avast –>security –> Behavior Shield —> Settings and under main settings untick “Monitor the system for unauthorized modifications” and click OK.

Do let me know, if my tutorial helped you and if it did do leave your valuable comment.  

Author: Anish Sangamam

My bio goes beyond Studies, More precisely, I am a Part time blogger. My mission is simple, To connect with people and to help them.

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  1. Hello,
    I have same problem with windows 8 and Avast, but when I try to open Task Manager, it shows up for a split second and then disappear again.

  2. Thanks for quick reply
    Have read that you can not use F8 in Windows 8 for Safe Mode, but instead Shift+F8
    Have tried that several times but does not work.
    This Windows 8 is running in VMware Workstation so perhaps that is the problem

    • Did you try Ctrl+Shift+Esc to open task manager
      I’m not sure of the VMWare,I never used it before to be honest but here is video tutorial that explains booting into windows safe modem from your VMware Virtual Machine.. . If this doesn’t work,try to restore the computer using system restore options.

  3. I am really impressed with your writing skills as well as with the layout on your
    weblog. Is this a paid theme or did you modify it yourself?
    Anyway keep up the excellent quality writing, it’s rare to see a great blog like this one these days.

  4. It worked perfectly. Thank you so much for taking the time to do this!

    • Great! Its my pleasure Rig. I’m glad that this post has helped many. Kindly share it thanks a lot

  5. Hey :'( You helped me alot !.. i didn’t notice that avast is the problem why i encountered the black screen issue. i reformat my pc for several times because i thought it’s a virus. and now.. its okay because of you! .. THANK You!!! 🙂

  6. I have had this black screen problem 3 times now, all occurred after my very first reboot after activating my copy of Avast. The first time I thought I screwed something up, this is the first PC I built, it’s over 5 years old, and prone to issues. So I did a system refresh through the W8 boot disc (no restore points, I turn them off), lost a lot of stuff, but not that big of a deal. The second time, I messed around with safe mode and uninstalled Avast, that worked. The third time (right now) I learned about the behavioral shield on the Avast forums, and after uninstalling in safe mode, reinstalled without the Behavioral Shield. Seems to be working, I didn’t get the answer from here first, but I can attest that this is a working solution to the black screen after logon problem. So thank you.

    Also, if you have task manager issues, like I did (pops up for 2 seconds without the actual menu loaded, and then disappears), restart, and at the password screen click the power off button, and hold shift and hit restart. It will give you a menu, and you can access “Advanced Startup Options”, that is where you can find safe mode.

    Thanks again, this is good advice.

    • Is there a way to do this for updated versions of avast? Mine doesn’t have the security tab on the top and I can’t find trusted in any of the tabs.


    • Try to work in safe mode. Try to hit Ctrl+Shift+Esc a couple of times or Ctrl + Alt + Del in safe mode.

  8. Really thank you soo much for your help..
    and now I can run avast in my 3: windows 8..
    where should I got to follow your tech news in up-to-date mam?

  9. Really thank you soo much for your help mam…
    I can run my avast happily..
    and can you help me with this problem plzz?
    its my windows 8 metro apps are crashing after an update
    even when I dint got avast installed.. The apps are killing…

  10. I have problem.pls help…..
    Windows 8 store opens and get closed directly without any warning.
    pls help

  11. hi every one.
    i still cant open task manager using all your key combinations its still not working on my win8 laptop.
    it says APP STOPS WORKING ENDTASK? and also i cant get through safe mode i need help. 🙁

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