1. Bluetooth issue of mouse stop responding: on a laptop use the track pad to move cursor to the Bluetooth icon in right hand taskbar. Left click that icon to open it and then left click the show Bluetooth option. Then click your Bluetooth mouse and it
magically starts working again.
2. 2004 Feature Update works much faster with an SSD than with an HDD. The spinning disk hard drive is quite slow for Updates.
3. Under Settings, Updates, Delivery Optimization: Turn Off "Allow downloads from other PCs." With it On, Update slows down.
- Under Settings, Stop all background running of Apps and programs. Again slows Update down.
5. Past experience has shown that Uninstall a Feature Update can bring a corrupt install back to your previous Feature Update, Example: 1903 to 1809. (For me, 1903 deleted needed software. Uninstalling Feature 1903 brought back the software that disappeared
with 1903. Later Feature Update from 1809 to 1909 worked with no issues.)