New Windows 11 update causes mouse cursor and desktop problems

Yesterday 19:21

By: Azzat Manal

New Windows 11 update causes mouse cursor and desktop problems

Microsoft has acknowledged problems affecting some users after the installation of a new optional Windows 11 update that was intended to improve system performance. Instead, the update has reportedly introduced a series of issues affecting the mouse cursor, desktop settings, system fonts and other basic functions.

The update, identified as KB5120998, has generated complaints from users who noticed that their mouse cursor could change size or color or disappear completely after installation. The problem can make everyday navigation difficult, particularly for users who rely heavily on the mouse to operate their computers.

Other reported issues concern desktop personalization. Some users have found that their selected wallpaper is replaced by a completely black background whenever the computer is restarted. Re-selecting the preferred image does not always resolve the problem, with the black background returning after another reboot.

The update has also been associated with problems involving the display of system fonts. In some cases, text reportedly appears blurry, while certain users have experienced difficulties using search functions within system folders.

Microsoft has confirmed that it is aware of the reported problems and is investigating them. However, a dedicated fix was not immediately available, leaving affected users looking for temporary solutions.

One option reported for dealing with the issue is to manually uninstall the problematic update. Removing an optional update can restore the system to its previous configuration, although users should generally consider the potential security and compatibility implications before removing Windows updates.

The incident adds to a long-running challenge faced by Microsoft with major Windows updates, where improvements intended to enhance performance or functionality can sometimes introduce compatibility problems on certain devices and configurations.

Windows 11 remains Microsoft’s main desktop operating system and continues to receive regular updates. Windows 10 reached the end of its standard support period in October 2025, making Windows 11 the primary supported option for users who want to remain within Microsoft’s desktop ecosystem.

For users affected by KB5120998, the situation highlights the importance of checking reports about optional updates before installing them, particularly when a computer is used for work or other critical activities. Waiting for Microsoft to investigate and release a corrective update may be preferable for those who do not urgently need the optional release.