On occasion (2 in 10) when we start the PC the Monitor Menu appears in the center of the screen- and we cant get rid of it (tried the monitor menu buttons). we either have to restart it and get lucky or work around it!
I assume that you have a desktop and not a laptop. I also assume this problem occurs during the POST - not just once Windows starts installing - which implies that you have a problem with the monitor itself rather than anywhere else(what happens if you just switch on the monitor and not the PC). I don't have a specific solution - in fact I suspect the problem could deteriorate with time - but I doubt you'll dop any good from switching off the PC, but you could benefit from switching off the monitor and switching on again after about 30 seconds.
If you are right then you will need to speak to your 'professional' about what he did that may have resulted in this phenomenon - its certainly not something I've come across before. However, if you can, try the monitor on a different PC and see if you clear the problem.
This thread is now locked and can not be replied to.