Microsoft confirms sleep problems and other issues in Windows 10 KB4535996

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When Microsoft released the KB4535996 update for Windows 10 to resolve the problems with search and printing, but, the update has been causing problems of its own for users.

There are numerous reports about the degraded performance after the update, but perhaps more worrying are the ones that slow down the process of booting up to the login screen. Worse, however, is how some users’ PCs have apparently hanged at that point, requiring a recovery to get things back to working condition. That’s on top of the sound and audio problems reported by users and issues with the app signing tool used by developers. That last one, Microsoft did acknowledge and committed to fixing. Sometime this month, that is.

Myriad reports have come in of issues with sleep, BSoD errors, and a reduction in system performance following the installation of the optional update.

After Numerous reports filled on Microsoft’s forum, Microsoft acknowledges there is a problem with the KB4535996 update that it released at the end of February. The company admitted the issue a couple of days ago, a few days after users started complaining about the inconvenience that the update installation brought.

Microsoft said it was “aware of the problems” with signtool.exe after installing the optional update KB4535996 for Windows 10 version 1903 or version 1909.


The solution that Microsoft offers is to uninstall KB4535996.

The real solution to the problem in the form of a new update that will be available in mid-March. Windows users certainly hope that the new update will not introduce more flaws, which has been familiar with Microsoft in recent months. While Microsoft does not offer instructions to uninstall the KB4535996 update, the process is easy. Those who need to uninstall it should follow the following steps:

  • Open the settings application via Windows + I
  • Choose the option “Updates and Security”
  • Open the “Windows Update” tab
  • Click on “View update history”
  • Click on “Uninstall updates”
  • Select update KB4535996 and uninstall it

After the patch has been removed, open the same page again and pause the update for seven days.

Many users reported that when they tried to install the update, the installation fails with the generic error messages 0x800f0922 and 0x80070003. Users also said that, after waiting for more than the account to complete the download and restarting the machine, the update caused a blue screen and a warning signaling that the system could not complete the update.

Also Read: The New Windows 10X for Foldable PCs is Here and it Looks Gorgeous

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