wsl installation seems failed: Nothing was processed. Reboot system.

[tantalar]

While setting up Ubuntu via Microsoft store, the system seems stacked and I have to reboot, before finishing wsl install (I think). After reboot, I tried to re-install wsl using "wsl --install" but powershell says "noting was processed. you have to reboot system." (note: since I am using Windows10 21H2 Japanese, then true message is in Japanese.) with no error code shown. This is first time wsl install. Of course reboot PC does not help.
I am sorry if this is known, I googled similar message but could not find a solution.
Other wsl command like without argument, it shows help message only (same behavior with wsl --help). Windows Subsystem and VM platform are enabled.

[ghost]

What version of WSL are you using?

[tantalar]

This is very frustrated that today I power-on the PC something update was executed and after logging in, "wsl -l -v" said "there is no distribution installed" which is completely different response... Now I can retry, it seems something was blocked reboot process of this subsystem but it was cleaned by the update.
I am very sorry that I was not able to reach this situation, even rebooted multiple times three days ago, and waste your time.