Latest CANARY Win 11 Pro build killed WSL2 Ubuntu 25.044 Win 11 looking for C:\Windows.old\Users\cigto.LAPTOP-TCRMNQRV\AppData\Local\Temp\wsl.2.5.7.0.x64.msi and not on PV

Question

I had a very good WSL2 installation of Ubuntu 25.04 until Win 11 Pro did an update to OS Build 27881.1000. after reboot, WSL2 will not work. How do I get WSL2 working. I used it to run Gnome Evolution, LibreOffice, PDF StudioPro 2024, and Nemo. It is essential that I have WSL2 running.

PC is hp Laptop 17-cp3005dx. I normally run my PCs dual- boot Win 11 PRO and Ubuntu 25.04. However, hp has messed the OS such that it will not give Ubuntu installation media access to the SSD to make an Ext4 partition.

Answer 1

Hi John,

It sounds like you're in a tough spot.

Since you're on a Windows Insider build, it's not uncommon for WSL and its related components to break following system updates. One of the first things you can try is to repair WSL via the Microsoft Store:

1. Open the Microsoft Store.
2. Search for Windows Subsystem for Linux.
3. If available, click Update or Install.

Then, you can try re-enabling the Windows features that WSL2 depends on, such as Hyper-V and the Virtual Machine Platform. These components may have been affected by the update, and manually enabling them using PowerShell (run as Administrator) can help restore WSL2 functionality:

bcdedit /set hypervisorlaunchtype auto

DISM /Online /Enable-Feature /All /FeatureName:Microsoft-Hyper-V-All

DISM /Online /Enable-Feature /All /FeatureName:VirtualMachinePlatform

DISM /Online /Enable-Feature /All /FeatureName:WindowsSubsystemLinux

After running these commands, please reboot your system to apply the changes.

If WSL2 is still not functioning and you rely on it urgently, you may want to consider rolling back the recent Windows update as a temporary workaround:

Go to Settings → Windows Update → Update History → Uninstall Updates.

Locate the recent Build 27881.1000 and uninstall it.

Once rolled back, pause further updates to avoid repeating the issue.

Note: This rollback option is only available if you're still within the rollback window (usually 10 days after the update), and recovery data hasn't been removed.

Hope this helps!