Windows 10 update is causing forced reboots

LSASS failure is affecting computers running Windows 10 version 1809 and later

Windows 10 screen

Microsoft has confirmed that the June Windows 10 Patch Tuesday updates are causing computers to crash due to a failure in Isass.exe, the Local Security Authority Subsystem Service (LSASS) file. 

The bug appears in the KB articles for updates to Windows 10 version 1809 (KB4561608), versions 1903 and 1909 (KB4560960), and version 2004 (KB4557957). The LSASS failure also affects the June 16 out-of-band update for printers that failed to work following the Patch Tuesday update.

Microsoft published the following statement: "The Local Security Authority Subsystem Service (LSASS) file (lsass.exe) might fail on some devices with the error message, 'A critical system process, C:\WINDOWS\system32\lsass.exe, failed with status code c0000008. The machine must now be restarted'." 

Microsoft will release a fix in a future update. It’s not clear whether the bug affects earlier versions of Windows 10. 

While the June updates appear to be the cause of the LSASS reboots, Bleeping Computer published a user report in May about computers running Windows 10 version 1809 displaying the same error code. One user stated, "Event Viewer Log shows that LSASS.exe crashed on the first boot with error c0000008 and then all services failed to authenticate after, which probably caused the crash.”  

Microsoft will publish optional nonsecurity update releases (C and D week releases) for Windows 10 and Windows Server, version 1809 and later, in July. These preview releases were paused in March to reduce IT admins’ workload due to the coronavirus.

They’ll be delivered in the third week of each month, enabling admins to test them during the next month’s Patch Tuesday update.

Featured Resources

How to scale your organisation in the cloud

How to overcome common scaling challenges and choose the right scalable cloud service

Download now

The people factor: A critical ingredient for intelligent communications

How to improve communication within your business

Download now

Future of video conferencing

Optimising video conferencing features to achieve business goals

Download now

Improving cyber security for remote working

13 recommendations for security from any location

Download now

Recommended

How to factory reset Windows 10
operating systems

How to factory reset Windows 10

4 Mar 2020
Managing a late migration
Microsoft Windows

Managing a late migration

11 Feb 2021
17 Windows 10 problems - and how to fix them
operating systems

17 Windows 10 problems - and how to fix them

29 Jan 2021
How to fix a stuck Windows 10 update
operating systems

How to fix a stuck Windows 10 update

29 Jan 2021

Most Popular

How to find RAM speed, size and type
Laptops

How to find RAM speed, size and type

26 Feb 2021
How to connect one, two or more monitors to your laptop
Laptops

How to connect one, two or more monitors to your laptop

25 Feb 2021
How to use Chromecast without Wi-Fi
Mobile

How to use Chromecast without Wi-Fi

26 Feb 2021