[daniel.karakas]

My Acer desktop froze and when after I did a hard reboot I got the red box error: secure boot violation - invalid signature detected.

 

I was able to go into bios and disable secure boot. Then I was able to restart it as normal and only thing that changed was my taskbar moved from bottom to left side.

 

I am wondering what I should do now to try to figure out what caused this error. I am currently running with the secure boot disabled and trying to save some important files.

 

Thanks in advance for your help!

 

 

 

 

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Click on start.

Type cmd

Right click cmd and run as admin.

At the prompt type or copy and paste sfc /scannow press enter key

When finished and still at the prompt

Type or copy and paste. one line at a time

 dism /online /cleanup-image /scanhealth press enter

dism /online /cleanup-image /checkhealth press enter

dism /online /cleanup-image /restorehealth press enter

 

Test

[peterm]

Click on start.

Type cmd

Right click cmd and run as admin.

At the prompt type or copy and paste sfc /scannow press enter key

When finished and still at the prompt

Type or copy and paste. one line at a time

 dism /online /cleanup-image /scanhealth press enter

dism /online /cleanup-image /checkhealth press enter

dism /online /cleanup-image /restorehealth press enter

 

Test