Losing the driver for no real reason?

Guys,
I ran some parts on the plasma cutter this morning. Then I did some machining, went to lunch, and later in the afternoon tried to cut some more parts. Mach 3 continually said that it could not find the driver, a code 43 problem? The Microsoft program said there was something wrong with the driver, that same driver from the Langmuir Systems worked in the morning. I tried to update the driver in my computer, no help. Guys, any ideas???
Help
Brian

Windows 10? Any updates occurring automatically in the background?

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A new antivirus program could do it too…

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I was going to suggest an fresh restart any time you are going to do anything after your computer has set idle for a period of time, if you don’t already do that.

Guys,
I have restarted, turned everything off, tried to update the USB, loaded a fresh new overal update to the whole computer. I think I have the same problem as a few other people, in that the driver board is bad.
Brian