Troubleshoot problems with your Microsoft mouse or keyboard
https://support.microsoft.com/en-us/topic/troubleshoot-problems-with-your-microsoft-mouse-or-keyboard-5afe478d-6402-d72b-93b9-e4235fd5c4cd
WEBWireless keyboards and mice connect to your PC using a wireless USB dongle. Using any connection. Select any of the following headings, and it'll open to show more info: Update your PC. Mouse or keyboard is not responsive, shows a blinking red light, or no light. The mouse cursor or keyboard input is slow or isn’t working correctly.
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