The computer does not see the phone. What to do?

Question

Computers

The computer (Dexp 274) (Windows 10 PRO) does not see the phone (or any). I have tried all the methods on the internet and none of them helped. Everything is fine with the cable. Driver updated. The phone is shown in device manager with an exclamation point. Tried the program SDI Lite. Writes that the driver is not installed. I tried to download - it does not download. The device is displayed as - MTP USB device. Everything was working before, what should I do?
And by the way, a very important point! All devices under "Portable Devices" with an exclamation point. Although the computer does not see only the phone (any). Sees all other devices