So my Windows 10 copy screwed itself up and wiped the drive. So installed Windows 7 Ultimate (Yes its bootlegged cause I can't afford one right now.) When I installed the drivers when you have to restart to complete the installation after the Windows Splash screen I get no video signal come from the GPU. I have tried from 15.10 all the way to the latest drivers to no avail. Currently checking out Windows update. Can anyone help me out here.
EDIT: Specs
Xeon E3 1231v3 R9 290 Tri X OC 16gbs Kingston Vaulue RAm Asus H81M-E EVGA 750w G2 Acer G225HQ
Have you tried booting to safemode and see if you get the same issue. This should also allow you to roll back the system and/or uninstall the driver. It sounds like the monitor is going into a resolution range that is not compatible wit the card.
Also which version of 7 are you using? I can sort you a free key (legitimate) if you have Professional version.
I am using the Ultimate version since I had that lying around from awhile ago. Safe mode works hence the several AMD driver installs. Running the computer without the drivers from AMD still works since I am typing it in right now. The monitor is 1080p it works with this GPU.
Have you tried removing all the drivers and booting with the UPnP drivers of windows? Then running a cleanup with CCleaner or similar? Revo Uninstaller is great for getting rid of every last scrap of a program. If you have multiple drivers installed, it maybe that it has caused a corruption within the one it uses and has caused an error to occour.
I've had this issue with Win 7 ultimate running in a KVM, boot Windows in safe mode, delete the R9 in device manager, make sure to remove all driver software with the software of your choice (don't rely on Windows to do it right...it won't), reboot Windows using the default VGA driver, install the Crimson software (latest version) it will find the card and load the driver, reboot and it should work fine.
I'd recommend using DDU to remove the driver and existing software, and to DL the Crimson software before doing any of this so it's on your desktop ready to go.
I might also add that I started with a vanilla install of Win 7 ultimate and had issues, installed SP1 and it got better, turned on updates and let it install all updates (including the Win X migration) and it is working as it should, I went all the way with the updates so I could test the Spybot Anti-Beacon software which seems to work stopping the telemetry but the jury is still out on for how long it will work, I did turn off the updates after getting to that point.