Class Not Registered error how to fix

[Windows Central Question]

i can not restart my computer an error comes up, Class Not Registered error, what dose this mean

 

[a5cent]

That's likely a missing or improperly installed COM component. The error is most often the result of an installer screwing up or a registry cleaner removing entries it shouldn't have.
I'd disable all software launched as part of the boot process and see if the error persists. If that fixes it reactivate the software components one by one to see what's causing it and then reinstall that software. If you can't fix it that way, your fastest option would likely be to reset or clean install windows.