The Windows Update KB4577266 broke my WiFi and I cannot uninstall it. Before trying to uninstall, I tried the following actions, all unsuccessfully:
- Activating Airplane mode and then deactivating it
- Disabling the WiFi driver in device manager and re-enabling it (cannot update driver, as cannot connect to WiFi)
- Restarting the computer
- Forgetting the network before trying to reconnect (it can see networks, but gives an error when trying to connect to them)
- Using the troubleshooter
I have two Windows Updates from the recent hours:
- KB4579311, which I successfully uninstalled, but it didn't solve my problem after restart
- KB4577266
The problem with KB4577266 is:
When I right-click it, it won't response (usually it should show a context-menu with an Uninstall option)
When I open a CMD console as an Administrator and run
wusa /uninstall /kb:4577266, I get the following error message:Windows Update Standalone Installer: Security Update for Microsoft Windows (KB4577266) is required by your computer and cannot be uninstalled.
How can I force Windows to uninstall it?
"Solution" Summary
- After the two updates were installed, I couldn't connect to any WiFi network.
- Tried to uninstall the two updates one by one. Windows refused to uninstall the second update, while uninstalling just the first update didn't solve it.
- I wanted to restore the system to the point before the two updates were installed, BUT I've already uninstalled one of them, so the ONLY point available for restore was the point before I uninstalled it, i.e., where the two updates had just been installed.
- I nevertheless ran restore to that point, hoping that having the system running in that point, it would allow me to restore an even earlier point, where I'd get rid of the two updates.
- After the restore process to the point where the two updates were just installed had been completed, the WiFi was back to work properly, even though the two updates were there. I can't explain why.
