[SOLVED] pc not working,blue screen says kernel security check failure

[wilson75378]

My friend has just sent me some screen shots of his pc,he has a problem he switched it on yesterday and it keeps restarting and going through the same screens so he hasn't be able to use it
The first blue screen says your pc ran into a problem and needs to retart we'll do it for you,the stop code on the blue screen says Kernel security check failure,it then goes through the 3 screens continually.Those screens being the blue screen with the message then the Dell start up page,then a screen saying preparing automatic repair,but nothing happens apart from those 3 screens appearing again



He can't use it to get on the internet to see how to sort this out as it wont go past those screens,so phoned me and I thought I would ask on here

It is an old dell optiplex that is now running windows 10,I would have added the screen shots but don't know how too

 

[H0PEFU11Y]

Get him to go in safe mode and see if he still gets the BSOD's

 

[wilson75378]

Thanks,He said he couldn't get in to safe mode,you do that by pressing f8 don't you?He tried that

 

[Starcruiser]

Try this :

How To - How to fix Windows 10 error Kernel Security Check Failure

The Windows 10 error Kernel Security Check Failure usually results in a BSOD. While the blue screen in Windows 10 is friendlier than before, it still isn’t something we want to see while working on our computer. So if you want to fix Windows 10 error Kernel Security Check Failure, this tutorial...

forums.tomshardware.com

 

[H0PEFU11Y]

Thanks,He said he couldn't get in to safe mode,you do that by pressing f8 don't you?He tried that

https://smallbusiness.chron.com/run-safe-mode-dell-computer-51443.html may help though do get him to try what the above person posted as that'll probably solve the issue rather than trying to diagnose it