Please send us a picture of the SN .
Here are possible solutions :
1.Check the monitor connections to ensure they are secure.
2.Try using a different keyboard to rule out a faulty keyboard issue.
3.Verify that your graphics drivers are up to date. Here is the driver: https://mega.nz/file/H3Bm0aCK#gT ... 3lxnVhL-QfMEPJaIe90
4.Examine if there are any hardware conflicts or errors by looking in the Device Manager
It could also be related to a software conflict or a corrupted system file. Run a system scan and repair using Windows built-in tools like SFC (System File Checker) and DISM (Deployment Image Servicing and Management).
If the problem persists, I suggest you have it checked and repaired in your local workplace.