Problem
- Since upgrading from Windows 11 22H1 to 22H2 launching applications frequently results in a short freeze / hang (20-30 seconds).
- Happend about once every 2 hours, but still feels rather random
- Mouse and already running application still respond but newly launched apps won't start
- After the lag is gone all these apps launch at once
- No blue / black screen
- No Windows event manager entry directly connected to the hang (as far as I can see)
What I tried
- Windows DISM health check (100% ok), Windows SFC repair (100% ok)
- Uninstalled BD, used BD uninstaller, fresh install (problem persists)
- Deactivated BD Advanced Thread Detection and Acronis Cyber Protect Home Office Protection modules (problem persists)
- Uninstalled BD and used the machine with Windows Defender only (problem gone for a full week, then tried next solution idea)
System
- Windows 11 Pro x64, 22H2, Build 22621.674
- Bitdefender Total Security, Build 26.0.28.94
- Acronis Cyber Protect Home Office, Build 40173
- Intel i9-12900K Alderlake, Nvidia 3080 FE, Samsung 980 Pro 2TB m2 PCIe
I'm 100% sure that this issue only started after upgrading from Windows 11 22H1 to Windows 11 22H1.
It feels like an issue with the newly implemented Intel Thread Director 2 (22H2) vs Thread Director 1 (22H1). Like the application gets confused which of the many cores to use. But most likely my presumption is wrong.
Thanks a lot for your support and help, I'm clueless what the root cause could be except BD.