“The display manufacturer hasn't made your display compatible with Windows 10”
If you receive the above message when trying to upgrade toWin10, we have found that this message is related to the Display Adapter(graphics card).
Win10 will load a Generic PnP Driver for the graphics card if a specific Win10 driver is not available.
To solve this issue:
We recommend that you run Windows Updates on the computer to getthe latest software updates for Windows 10 as they are being updated atregularly.
We also recommend that you go to the graphics card manufacturerto locate the latest available driver for the video card and install it.(Strongly recommended)
Installing drivers through Windows Update:
launchit from Start >Settings >Update and Security andclick Check for Updates
WindowsUpdate will detect your system configuration and download all the appropriatedrivers for your system.