Microsoft's latest Windows 10 update fiasco is further negatively reinforcing people to download the company's update, which is making PCs run slower.

Windows Latest claims that Windows Update KB4559309 is leading to poor performance on some PCs. KB4559309 is installed automatically and is the same update that Microsoft uses in Windows 10 for Chromium Edge on Windows 10.

The report of the performance degradation was originally posted on a Microsoft forum. User PaulWaite1 posted it under the title "Update KB4559309 Makes Computer Unbearably Slow."

Worse yet, he writes:" Since then, my computer performance has absolutely plummeted." My boot time has probably tripled and there is a delay of several seconds when loading any window. In addition, he is unable to uninstall the update, making things even worse, and the ultimate nightmare awaits.

This is a flaw in the latest Windows 10 update and reflects poorly on Microsoft's quality control.

We often advise uninstalling a malfunctioning Windows 10 update, but that is not possible here.

So the first option is to manually download the Chromium-based Edge. This reportedly blocks KB4559309 from being automatically installed on your system.

Alternatively, you can use the System Restore feature in Windows 10. For more information, see "Restoring from a System Restore Point" here.