Despite Microsoft’s efforts to improve Windows Update
experience, there are cumulative updates that still break
features for some users. The most recent
KB4512941 for Windows 10 version 1903 causes high CPU usage
and it looks like the update also breaks down Windows Search on
some configurations.

According to various posts on Feedback Hub, Reddit,
Microsoft’s own community
forum, Windows Search is returning a blank search result on
production devices, making Windows 10’s built-in search tool
completely redundant.

It appears that the problem is mostly hitting the devices that
have a Group Policy or Registry entry that deals with Windows
Search and Bing.

“Search box is there but when searching something, only a black
box is shown without showing any results. Uninstalling the
update solves the problem,” a user wrote on Feedback Hub.

“Windows Search is not working after I installed the latest
Windows 10 update, I don’t know what to do I tried the
troubleshooter but it did not find Anything wrong, I also tried
restarting the computer and everything else,” another user
noted.

According to the status of a feedback post, Microsoft is
looking into the problem but the company is yet to share
workarounds or an official statement.

Windows 10 KB4512941 installation error 0x800f081f

Windows 10 KB4512941 is failing to install for Windows Insiders
in the Release Preview Ring, according to several posts on
Feedback Hub. Windows 10 KB4512941 fails to install with
error 0x800f081f on PCs with Build 18362.327:

“Got this error code multiple times while I was trying to
update Windows 10. Running on 10.0.18362.327 in the Release
Preview Ring (Windows Insider) on a device with Windows 10 Pro
(x64),” a user said.

It’s unclear if this bug is also hitting the production
devices.