Windows 10 Upgrade- Is it safe?

This may sound like a silly question, but I am considering an upgrade to Windows 10.  Will I have to reinstall COH/EF and/or are there any issues with gameplay with the new OS?

No.

I'm using windows 10 64 bits and so far haven't got any problem. Well, I got some crashes if I removed the usb wireless adapter out of the blue and I fixed it by installing the drivers from the manufacturer's site.

I don't have played too much since I'm very busy, but what I have ran so far works fine and without crashes, CoH and EF included.

After upgrading to win10, i'm no longer able to run EF. Help.

Hawier2009 wrote:
After upgrading to win10, i'm no longer able to run EF. Help.

I doubt someone will be able to help you with the amount of information shared in that post :(.

Please be more specific if you want help.