Blank Screen after you upgrade to Windows 8.1
I have encountered several issues where customer ends up with a black screen after upgrading to Windows 8.1. After a few research and trial and error attempt, we finally came up with a solution to this problem.
This issue is usually caused by a legacy/compat AMD WDDMv1.2 driver being offered to some OEM systems causing black screen issues after upgrading to Windows 8.1.
1. To resolve this, you will need to boot into Safe Mode, and update the video card driver
Boot the PC while holding the Shift key
Once the Recovery screen is displayed, click or tap on the See advanced repair options button.
Next, click or tap on the Troubleshoot button.
In the troubleshoot menu, click or tap on Advanced options,
Then select Windows Startup Settings.
You will need be prompt to restart the PC. You will see a a boot option screen where you can select Safe Mode with Networking.
2. While in Safe Mode with Networking, you need to download and install the latest video card drivers.
Note: Download only the driver from the manufacturer's website.
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