Hi, Since today our client are experiencing a strange issue which affects all their HP EliteDesk, HP Compaq DC7900 SFF computers with HP Optical Mouse Model MOFYUO, P/N 672652-001 and Windows 8.1 Professional x64. This is related with recent Windows Drivers and we are trying to identify which update is causing the issue. The mouse just stops responding and if you reconnect the mouse to other USB ports, the issue remains. If you change the optical mouse with any other mouse (PS/2 or USB) it works, but with the USB HP Optical Mouse it doesn't!

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So open the Device Manager and you will see that Windows is identifying the HP Optical Mouse as ' HP USB-C to DisplayPort Adapter' which is causing the issue. Contoh Program Kasir Dengan Php Tutorial Pdf. Hp Connection Manager Windows 7 Download Free. Since we can't manage the computer using the mouse we need to solve this using the keyboard, accessing through Remote Desktop or with other mouse device (PS/2 or USB). We can solve the problem, opening the Properties >Driver and selecting ' Rollback driver' After that we get a warning message and we confirm that we want to rollback the driver as follows. After that the USB HP Optical Mouse mouse instantly starts working on that particular USB port, you will see that it dissapeared from the Device Manager, even if you restart or if you 'Scan for hardware changes': We need to repeat these steps for each computer and each USB port of that computer. Introductory Mycology Alexopoulos Pdf Printer. We are under investigation but this looks to be an issue with a particular Windows update. If you are not able to rollback the driver, first you need to fully Uninstall 'HP USB-C to DisplayPort Adapter'. You achieve that going through Device Manager.