Microsoft have released patches for the App-V client built into Windows 10 build 1703 and 1709, as well as one for App-V 5.1 (Hotfix 11):
- App-V 5.1: https://support.microsoft.com/en-gb/help/4074878/march-2018-servicing-release-for-microsoft-desktop-optimization-pack
- Windows 10 1703: https://support.microsoft.com/en-gb/help/4077528/windows-10-update-kb4077528
- Windows 10 1709: https://support.microsoft.com/en-gb/help/4074588/windows-10-update-kb4074588
The major headline for the Windows 10 patches is reverting the registry system from the new container-based system (CREG) back to the old virtual registry system (VREG). This should resolve a range of reported issues that crept in with 1703.
All 3 patches also contain a fix to prevent registry corruption under HKCU when using connection groups, so it’s recommended to update as soon as possible!