1) If this is the case when the computer is turned on, don't operate it immediately after the computer is turned on, because the background is loading the program when the computer is turned on, and it will be operated later. If it's not turned on. Is it the card? Try not to get your computer stuck. If it is not caused by the card, uninstall what you downloaded before the accident, restore the system or reinstall it.

Win78 10 Restore the system, right-click the computer and select Properties, and select System Protection and System Restore on the right. Follow the steps. If you have recovery software, you can also use software and image backup to recover the system.

2) If you say that it will crash when you turn it on, is it related to your improper operation before turning it off? For example: playing games, watching videos, operating big things, and using computers for a long time? Or download inappropriate things, or delete system files, or shut down. Failure won't happen for no reason, will it?

Try switching the machine on and off repeatedly for a while. You really can't reinstall the system. If you can't install it yourself, spend 30 yuan to find a maintenance person to help you.

As long as you pay attention to your computer, it won't be like this when you turn it on.

Ask me any questions.