Windows 10: Windows 21H1 says its up to date - but it isn't!

A client has an older laptop that is not able to move to Windows 11.She was convinced it was fully updated, because the settings-windows update page shows "youre up to date".and assures me she always allows it to do updates.She was astonished when I showed her it had failed to install the 21H2 update.I ran WUreset.bat and the windows update troubleshooter - it still would not recognise an update was needed.Then I tried to force an update via windows update assistant - but it ended without an update being processed.So the machine is still on 21H1 - and STILL saying "youre up to date"Why is wind

:)

 

Printer isn´t working after latest update.

After the latest update from Windows, my Canon Pixma ip6600 printer isnt working. In Device Manager it shows up as working properly but when I go to print it isn´t listed as an option in any programs. Troubleshoot suggests it´s a USB 2 printer on a USB
3 port and that that´s the problem but that cant be since it worked fine before the update. I´ve tried to uninstall and plug it back in but that doesn´t work either.

 

Cortana isn´t working

When I hit enter, it did something, but there´s still no Cortana, even after restart. So I tried it again, but now it says that it failed, because it´s already installed and it´s working in PC. So it should work, but Cortana still isn´t here.

 

Razer Kraken V2 - Microsoft Teams (work or school) says "Your speakers aren´t working" & "Your microphone isn´t working"

Since I upgraded to Windows 11 my Razer Kraken V2 can´t be used for calls and meetings in Microsoft Teams (work or school).

While making a test-call there comes a pop-up saying: "Your speakers aren´t working" & "Your microphone isn´t working".

With the newest software installed from the Razer Website (Razer Synapse 3.7.131.11810 & Razer Synapse 2.21) it isn´t working.

When I tried to unistall Razer Synapse and reboot afterwards, it won´t change a thing - the only solution was to unistall razer synaps, uninstall the driver in the device-manager for the headphones and also for the microphone.

No Razer Synapse means no 7.1 sound, nor bass optimization.

I already asked the Razer support about that topic - they said when everything else (beside Microsoft Teams) the problem isn´t on their side?!

A Week ago, everything was working fine under Windows 10, thats the funny thing.

Any guesses what to do, so it will work again with the correct drivers?