I just installed window 7 yesterday and installed bootcamp support on the flash drive but the resolution is still not update Imac late 2012 1TB 16 ram. And also I installed it with a real copy of window 7 home premiunm
iMac, OS X Mountain Lion (10.8.5)
What is the GPU under Display Adapters in Device Manager?
Generic Non-PnP Monitor on standard VGA Graphices Adapter
From iMac (27-inch, Late 2012) - Technical Specifications, you have nVidia GPUs. Please use System requirements to install Windows 7 and earlier on your Mac using Boot Camp - Apple Support to download drivers appropriate for your specific iMac and try Install and Repair from Boot Camp: Solve Windows support software installation problems.
Do you know if your Windows installation is EFI or BIOS?
nvm I fixed by downloading the new graphic driver
window 7 boot camp resolution problem
