Windows won't recognise driver

[Camera]

Worked for several months and for unknown reason it didn't work today.  Windows 10 couldn't recognise the driver CH341SER.  I tried to install it and it all went well successful and under device manager still said unknown device.  Using Windows device Manager to install the driver and it said it couldn't.  Tried to use different USB ports, reboot the machine, still no use.  What's wrong?  Please help.

[Zax]

This is a known problem, Windows has updated the driver for you and replaced it with one that doesn't work.

You can try to roll back the driver, but since you've tried to load over it that may not work now.

In T2Laser, go to the Help menu and click Install CH340 Driver. The USB needs to be connected, but that should fix it.

[Camera]

No it didn't work.  The driver either old or new drivers both didn't work.  It said Windows cannot start this hardware evice because its configuration information (in the registry) is incomplete or damaged (code 19).

[Zax]

It sounds like it's corrupted, which is why I thought re-installing would work. Can you manually replace the driver from driver manager?

[Camera]

I got the "setup" exe file and I also donwloaed some files CH341PT.DLL, CH341S64.SYS, CH341S98.SYS, ch341SER.CAT, CH341SER.INF, CH341SER.SYS, CH341SER.VXC.  Which is the driver?

[Zax]

The easy answer is all of them, the inf is what you point to when installing.

[Camera]

It is Windows' problem.  Not driver problem.  It works now after I deleted the USB driver and reinstall it (not the CH... driver).  Thanks for your help.