KB4598291 update fixes device deactivation, responsiveness issues

KB4598291 is a preview update, it is considered optional, and it will not be installed automatically by Windows 10.
To install it manually, you have to open Windows Update and 'Check for updates.' You’ll then find the link to download and install the update by going to the 'Optional updates available' area.
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www.bleepingcomputer.com

Windows 10 KB4598291 update fixes device deactivation, freezing issues

Microsoft has released the KB4598291 release preview cumulative update for all editions of Windows 10 and Windows Server versions 2004 and 20H2, with fixes for device deactivation issues and unresponsiveness while playing games in full-screen.
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Microsoft fixes issue causing Windows 10 apps to forget passwords

Microsoft has addressed a known issue impacting multiple Windows 10 apps and causing them to forget users' passwords after upgrading devices to certain Windows 10, version 2004 builds.
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According to Microsoft, KB4598291 also "addresses an issue in which using local Service for User (S4U) affects Data Protection API (DPAPI) credential keys and causes users to sign out unexpectedly."

The reason behind this issue was discovered by Google vulnerability researcher Tavis Ormandy after discovering that scheduled tasks created with the Task Scheduler's S4U (Services For User) option are to be blamed.

Due to a bug in the RPC UBPM (Unified Background Process Manager), Windows 10 would forget passwords by removing saved credentials in the Local Security Authority Subsystem Service (LSASS).

This causes the affected apps to either lose login state or sign out users out of their accounts after every system restart.

Microsoft first acknowledged the issue causing Outlook and other apps to forget user passwords in a document published on its support website in November 2020.
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www.ghacks.net

With KB4598291 causing issues on some Windows 10 devices, you better be careful with today's update releases - gHacks Tech News

Last week's preview update KB4598291 is causing issues on devices, including issues getting the update to install.
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www.windowslatest.com

Windows 10 KB4598291 fixes another bug, but it's also causing other issues

Earlier this month, Windows 10 received a KB4598291 cumulative update which fixes a host of bugs, including some of the features broken by the October 2020 Update, such as the Alt-Tab apps switcher and Windows Credentials manager. These bugs have been affecting October 2020 Update users for some...
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Tiamati said:
My PC wasn't sleeping anymore. I made some research and installed the update. It solved the problem
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All of a sudden my PC wasn't sleeping anymore either and installing this update hasn't fix it for me :confused:
I had this problem few months ago too and back then a new Windows Update fixed it.
 
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SeriousHoax said:
All of a sudden my PC wasn't sleeping anymore either and installing this update hasn't fix it for me :confused:
I had this problem few months ago too and back then a new Windows Update fixed it.
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Open CMD as ADM and write:

powercfg -requests

It will list which service is requesting windows to stay awake.
"mousocoreworker.exe" was the responsible now and in the past with windows update problems.
If it's not it, you can try to find the responsible based on the cmd report.
 
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Tiamati said:
Open CMD as ADM and write:

powercfg -requests

It will list which service is requesting windows to stay awake.
"mousocoreworker.exe" was the responsible now and in the past with windows update problems.
If it's not it, you can try to find the responsible based on the cmd report.
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BTW, do you know if sleep and hibernate are connected or not? If I disable hibernate then would that affect the sleep function in any way?
Edit: Never mind. I just checked by myself and disabling hibernate don't affect sleeping. Also last night's Windows update has fixed the sleeping issue also.
 
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The February 2021 Security Update Review:
It’s the second Tuesday of the month, and that means the latest security updates from Adobe and Microsoft. Take a break from your regularly scheduled activities and join us as we review the details of their latest security offerings.
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www.zerodayinitiative.com

Zero Day Initiative — The February 2021 Security Update Review

It’s the second Tuesday of the month, and that means the latest security updates from Adobe and Microsoft. Take a break from your regularly scheduled activities and join us as we review the details of their latest security offerings. Adobe Patches for February 2021 For February, Adobe released
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venustus said:
Way to go MS...Fix one issue and bork another:rolleyes:
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I can't confirm. Never had a problem with the sleep function and the February update went fast and flawless. Possibly is the reason that I keep close to the default system settings and don't experiment (anymore) with all kinds of security -, privacy - and tweaking programs.
 
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Jan Willy said:
I can't confirm. Never had a problem with the sleep function and the February update went fast and flawless. Possibly is the reason that I keep close to the default system settings and don't experiment (anymore) with all kinds of security -, privacy - and tweaking programs.
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Just like you, my system is very close to system settings, not installing too much software, just the necessary to work and secure the system.
With the pandemic, my daughter is having classes hover the internet, so I have two systems to keep working without failure I maintain the system with the minimum necessary software.
All Microsoft updates went smooth, but my systems are brand new.
 
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