I purchased a new Bluetooth 5.3 usb adaptor and was having problems with it. It worked totally fine while logged in, but then I noticed when I shutdown my PC and then turned my PC back on my Logitech wireless mouse and keyboard did not work on the login screen. Because of this I returned the bluetooth adaptor thinking it was defective and purchased another one from a different manufacturer. This time on the log in screen my keyboard is detected but my mouse is not. When i log in and go to bluetooth devices I see that my mouse is not connected. I have tried updating the bluetooth driver, but it says I have the latest version which is a Microsoft Generic bluetooth driver from 2006. I tried looking for an updated Microsoft driver online but it appears that the 2006 driver IS the latest driver. I also tried looking for a driver on the adaptor manufacturers website but there is no driver available for this adaptor becuase it is supposed to be plug n play. I have an older bluetooth 4.0 adaptor and that one works flawlessly. Also I am having a problem with not being able to remove bluetooth devices. Windows is showing 2-3 instances of my mouse and keyboard in bluetooth devices. i have tried removing them via the bluetooth devices screen, also via control panel, and I've tried uninstalling the bluetooth adaptor in device manager all which hasn't worked. At this point I am considering returning this 2nd bluetooth 5.3 adaptor and just using the old 4.0 adaptor instead.