

If you search for "Keyboard and Mouse stopped working" you will see quite a large list of forums where people are having issues! The issue is definitely KB4074588 or at least the initial version of this patch that went in on or around 14th February, I think another version went in around 16th to 18th as presumably MS realised what a they had created.

I have had it mainly with Dell PCs as nearly all my clients are Dell users.
