On Tue, 28 Jul 2020 08:51:39 +0100, "Jim GM4 DHJ ..."
wrote:

anybody just had an update and now their mouse has stopped
working?.....did this not happen before?...fecked up a load of
drivers?.....hate bloody computers...

I once had something similar (not a W10 update). The mouse was
cordless and the dongle was in an additional USB port rather than the
main one. It turned out the additional port was not recognised at the
start and moving it to the 'main' port instead resolved the problem.