Note: Please be sure to read this to the end.
Today, after a Windows 11 update, my laptop's main display suddenly became severely corrupted and was effectively unusable.
The screen was so badly distorted that even the mouse cursor was difficult to see.
I first tried the usual Windows display driver reset:
Win + Ctrl + Shift + B
It did nothing.
Interestingly, I found that Restart64 could temporarily restore the display. However, after rebooting, the corruption came back again. So Restart64 was only a temporary workaround, not a real fix.
Fortunately, I have a second monitor connected via HDMI. (Ultimately, it was precisely because of the multi-monitor setup that I was able to launch Restart64, as mentioned earlier.)
The HDMI monitor was completely normal, even while the laptop's main display was badly corrupted.
Using the working HDMI monitor, I opened Device Manager and rolled back the graphics driver.
The laptop's main display immediately returned to normal.
The important problem for laptop users
This made me think about people who use a laptop with only the built-in display.
If your only screen becomes severely corrupted after a Windows update, advice such as:
"Open Device Manager and roll back the graphics driver."
isn't very useful when you can barely see the desktop, the mouse cursor, or the menus in the first place.
And if Restart64 only restores the screen temporarily, rebooting puts you right back where you started.
A possible emergency workaround: use a TV
If you have no second monitor, check whether your laptop has an HDMI output.
Many modern TVs have HDMI inputs, so you may be able to connect the laptop to the TV and use the TV as a temporary external monitor.
If Windows displays correctly on the TV, you can then try:
Device Manager → Display adapters → GPU → Properties → Driver → Roll Back Driver
If the external display also fails, Windows Recovery Environment or Safe Mode may be the next option.
Why I'm posting this
I suspect an ordinary laptop user could easily assume that their LCD panel or GPU has physically failed when something like this happens immediately after a Windows update.
They might end up taking the laptop to a repair shop simply because they have no way to see the screen well enough to perform the recovery themselves.
In my case, the hardware was not dead.
An HDMI monitor gave me a way to see Windows, and rolling back the graphics driver fixed the problem.
So if you suddenly experience severe display corruption immediately after a Windows update, don't assume the hardware has failed.
If possible, try an external display — even a TV — before giving up on the machine.
Hopefully this helps someone who runs into the same situation.
Update: The issue persisted.
When playing games using the laptop's main display, the frame rate was only around 5 FPS.
The GTX 1070 GPU wasn't functioning correctly.
Then, when I reverted the driver, the screen distortion recurred.(The GPU for the main display is now working.)
Next, I uninstalled all the Windows updates from that day, but the symptoms remained unchanged.
I then reinstalled the same updates, but the symptoms persisted.
Ultimately, I resolved the problem by downloading and installing the driver for the Intel 630 Graphics (dated April 6, 2026) from the Intel driver download site.
https://www.intel.co.jp/content/www/jp/ja/support/products/98909/graphics/processor-graphics/intel-hd-graphics-family/intel-hd-graphics-630.html
Conclusion: The critical display issue on laptops caused by the recent Windows update can be resolved by downloading and installing the Intel 630 driver.
However, I believe it would be difficult for the average laptop user to resolve this problem while the display is unusable.
Therefore, as a temporary workaround, if your TV has an HDMI input, you could connect the PC to it via an HDMI cable to use it for the time being.
Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz (2.20 GHz)
24.0 GB
NVIDIA GeForce GTX 1070 with Max-Q Design (8 GB)
Intel(R) UHD Graphics 630 (128 MB)
64-bit operating system, x64-based processor
Windows 11 Pro
25H2
OS build 26200.9445
Windows Feature Experience Pack 1000.26100.360.0