Another Windows 10 update is wreaking havoc — here’s the fix

An update that fixed several issues seems to have brought some new ones.

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What you need to know

What you need to know

Updated March 9, 2020:Microsoftconfirmed the issuein a comment and is working on the fix. The comment reads, “We’re aware of issues with signtool.exe after installing the latest optional update for Windows 10, version 1903 or Windows 10, version 1909 (KB4535996). If you are encountering issues or receiving errors related to signtool.exe, you can uninstall the optional update KB4535996. We are working on a resolution and estimate a solution will be available in mid-March.”

A Windows update is causing issues for people yet again. This time, it’s Windows 10 KB4535996 that’s causing some people’s PCs to experience slow boot times. Additionally, the Sign tool app is crashing for some and lower frame rates in games and stuttering for others. Windows 10 KB4535996 was an optional update that fixed several issues, but it brought some new ones with it.

Windows LatestandTechRadarreported the issue earlier today. Additionally, a person on Redditshared their own issues with the update a few days ago. TechRadar also reports in some extreme cases, PCs can get stuck in a boot loop. It’s worth noting that Windows 10 should give you the option to boot your PC in Safe Mode if it fails multiple times. You can then uninstall the update.

Luckily, Windows 10 KB4535996 was an optional update, so a lot of people probably don’t have it on their system. If you have installed it and have any issues, you can easily uninstall it with these steps:

Microsoft has hadseveral update-related issuesover the last few months. We’ll have to keep an eye out to see if this is a continuing trend or a spurt of isolated incidents.

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Sean Endicott is a tech journalist at Windows Central, specializing in Windows, Microsoft software, AI, and PCs. He’s covered major launches, from Windows 10 and 11 to the rise of AI tools like ChatGPT. Sean’s journey began with the Lumia 740, leading to strong ties with app developers. Outside writing, he coaches American football, utilizing Microsoft services to manage his team. He studied broadcast journalism at Nottingham Trent University and is active on X @SeanEndicott_ and Threads @sean_endicott_.