Problem installing USB CDC / USB To Serial Drivers on Windows 7 Embedded

Problem installing USB CDC / USB To Serial Drivers on Windows 7 Embedded To install USB CDC / USB To Serial Drivers on Windows 7 Embedded you will probably have the nightmare with driver installation. Soo... On most Windows 7 Embedded operating systems something is missing whats the reason you cannot install USB CDC or USB to Serial drivers. Problem: Thing that's missing is: usbser.sys. Solution: Copy usbser.sys from regular Windows 7 with sam arhitecture to “% SYSTEMROOT%\system32\drivers” After you will be able to install USB CDC or USB to Serial drivers. I had to set user compatibility settings on driver setup (Run as: "Windows 7" and "Run as administrator") Wasted a lot of time but this tweak is working. Hope it helps!