My desktop will not reboot. It gives me a stop code. The stop code is 0xc000021a

[Dude0122]

I tried to reboot my desktop. It gave me a stop code. The stop code is 0xc000021a. I tried advanced options and tried to run diagnostics but it gave me a failure Id. It is RG88Q3-7N6B3W-WPTWMG-60ST03. The product id is J4V91AA#ABA

[DGroves]

first never ever, post any serial numbers!!!!!!

hopefully the HP mods will see this and remove it

next this link may be helpful, i make no claims on any software it recommends

https://neosmart.net/wiki/0xc000021a/#:~:text=The%200xC000021A%20error%20is%20a,user%2Dmode%20subsys....

personally i would do a reinstall of the os or HP OS recovery  or try a in place upgrade if you can access safe mode

[Prométhée]

hi @Dude0122  @DGroves 

RG88Q3-7N6B3W-WPTWMG-60ST03

Hard Disk 1 Quick Test Failure

there may be a hard drive failure @DGroves 

[DGroves]

you are correct, the numbers posted are indeed from the drive test program i stand corrected

see page 2 where it mentions a 24 digit code

https://images-na.ssl-images-amazon.com/images/I/A1PvDgi5ikL.pdf  

[Prométhée]

Yes but @DGroves  if  you have the product number, you can go directly here, the user can do the same

https://support.hp.com/us-en/help/diagnostics?category=computing&issue=lockup-issues

You can use the HP Failure ID decoder to find out more information about the error code and find fur...
I hope this will be useful to you later.