Windows 10: https://answers.microsoft.com/en-us/windows/forum/all/not-able-to-brighten-the-screen-with-h...

Question similar to https://answers.microsoft.com/en-us/windows/forum/all/not-able-to-brighten-the-screen-with-hot-keys/cf9606b4-be43-4c80-a79e-589e22a7bcb3

:)

 

Black screen after Windows update.

Hi Crystel,

Thank you for writing to Microsoft Community Forums.

• Were you able to get to the desktop screen after you restarted the system?
  
• When the screen was blank, were you able to see the cursor on the screen?
  
• Did you get any error code or error message?
  

Please get back to us with answers to above questions, for us to suggest the appropriate troubleshooting steps.

Meanwhile, I suggest to try the steps mentioned in the article below and let us know if it helps.

Troubleshoot black screen or blank screen errors

We look forward for your reply.

Thanks,

Peer Samie

Microsoft Community-Moderator

 

After upgrade to Windows 10, screen keeps dimming, then brightening!

I have updated the Display adapters as per another answer, but the dim/brighten/dim/brighten issues seems to be persisting. Can anyone suggest another remedy please. My laptop is an HP Pavilion.

 

Redirecting...

See
Troubleshoot Windows Defender Update Issues in Windows 10



Also see Configure Windows Defender in
Windows 8, 8.1 and 10 to include the https://www.winhelp.us/configure-windows-defender-security-center.html tutorial.
Good article but ignore any ads.



If you continue to have problems updating Defender see the Answer of quietman7
- MVP in Redirecting



Go to Security and Maintenance, look in 'Security' and see what program is listed under Virus Protection. Windows Defender will not be enabled and functioning properly if there is a program other than Windows Defender listed.



You may want to follow the steps recommended in Problems
starting Windows Defender in Windows 8/8.1/10



Alternatively - - -



You may prefer to install a third party antimalware program.



There are a number of viable free and paid options available – take your pick…



Choosing an Anti-Virus Program





Is Windows Defender The Best For Windows 10? Good article
but ignore the ads.





Consumer antivirus software providers for Windows - Microsoft Support







Regards…





Top 10 Ways PUPs Sneak Onto Your Computer. And How To Avoid Them.