Windows 10 Windows Update KB5021233 - Causes Severe Performance Issues with WSL Integration for IntelliJ

  • Thread starter Thread starter Matthew.Ciaravino
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Matthew.Ciaravino

Hello,The recent Windows Update KB5021233 causes serious performance issues with WSL integration for IntelliJ Idea. When saving a file inside the IDE the UI freezes for ~45 seconds. After reaching out to JetBrains support, they notified me that they cannot fix the issue and that the Windows Update causes the problem. Here is the message from their support rep:The issue seems to be with the A/V monitor affecting I/O performance of the WSL and the exclusions not working properly. If you tell Microsoft that KB5021233 is causing the problem and link them to Issues · microsoft/WSL

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