Windows 10 May 2019 Update Disrupts Colors on Some Monitors

Windows 10 May 2019 Update Disrupts Colors on Some Monitors

The Windows 10 May 2019 Update would have a bug that would break the color settings or calibration of some monitors. Although Microsoft has apparently fixed the issue with a recent Windows update, according to some users, this does not resolve the issue, but luckily, there still seems to be a workaround that can be used. The issue itself, documented on the Nvidia forums, Reddit, and also addressed by monitor maker Eizo (known for its high-end displays), means that colors are not rendered correctly with banding (vertical lines) in color gradients. color. Eizo said: "Notice: We strongly recommend that you do not use a PC running Microsoft Windows 10 (1903) (Updated May 2019), especially for creating diagnostic images or Graphics Editing that require pitch precision. The gremlin seems to be obvious for some GPUs, however, as mentioned, with the recent patch KB4501375 for Windows 10 May 2019 Update, Microsoft claimed that the color management issue was resolved. In the release notes, Microsoft said: " This issue can cause the pilot, color management profiles, or gamma correction to stop after a "device" shutdown. However, at least reviewing some of the users posting on the Nvidia forum, the issue is not really resolved by the fix. But as mentioned, there is a workaround that seems to do the trick, and it can be activated from the task scheduler.

Solution details

As Windows Latest points out, you need to go to Task Scheduler (search for it in the search box next to the Start menu), double-click Task Scheduler Library, double-click Microsoft, and then double-click Click click Windows. Next, locate and click WindowsColorSystem, and then in the Calibration Loader task (right), select the Triggers tab. Select "At login" on this tab, click Disable, and then do the same for the second "At user session login" entry. You'll need to restart your PC for the changes to take effect and you'll cross your fingers that it will sort your monitor out and display it correctly. Finally, please note that in addition to Windows, some of the third-party monitor calibration utilities are also affected by this bugbear, as indicated by DisplayCal. As we've recently seen, Windows 10 May 2019 Update has a bug that can interfere with some VPN connections. Again, this flaw is for the KB4501375 patch (but luckily, this is not a problem for the average VPN user).