How to solve Windows 10 error?

Hi Eva, welcome to the forum! When this happens, something is going wrong with your computer. It is not necessarily specifically related to wifi. That just happens to be the bit where Windows trips up. The automatic repair usually fixes whatever it is that trips Windows up. However, sometimes it doesn't work. Considering this started with you updating to Windows 10, I suspect the issue to be somewhere in there. You might want to look into updating wifi drivers, or rolling back the update and trying again.