

When the machine restored the keyboard and mouse were back in again and all was well. This worked after 3 goes and I was able to get into the recovery console and advanced and select a system restore point before the 14th February when the update was applied. So I figured out the only way to get to the recovery console was to get to the logon screen and then pull the power cord. I had a machine yesterday where it was a pretty fast machine with an SSD and doing the power down three times at the login screen didn't work as the machine was able to shut down normally within the 5 seconds so I could not get to the recovery console. If you search for "Keyboard and Mouse stopped working" you will see quite a large list of forums where people are having issues!
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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.
