(Xbox PC App Preview) Files verification Failure

Hello Voicu D, My name is David. I am an independent advisor, happy to help you today.

I'm sorry you're going through this.
In the Xbox Game Pass app for PC, you can check the integrity of your game files to make sure there are no corrupted or missing files. To do so, follow these steps:

Open the Xbox app (Beta) or the Xbox app for PC.
Go to the game library and find Yakuza Kiwami 2 in the list.
Right-click on the game and select "Additional Options" or "Manage Installation."
From the drop-down menu, select "Verify Files" or a similar option.
Wait for the verification to complete and then try starting the game again.

Best regards.

I've changed it on PC, logged in correctly on PC, but on XBOX 360 it is not working; I also activated this two-step verification (or how it is exactly called), tried several times with different numbers generated via some verification app on my WP8 ... still
nothing

you're right, forgive me. To verify files in the Xbox app, you can follow these steps:

Open the Xbox app on your Windows 10 PC.

Click on the three horizontal lines in the top-left corner of the app to open the menu.

Click on "Downloads" from the menu.

In the "Downloads" section, you should see a list of all the games and apps you have downloaded from the Xbox app.

Find the game or app you want to verify and click on it.

If the game or app needs to be updated, click the "Update" button first.

Once the update is complete, click the "Verify" button next to the game or app.

The verification process will check the game or app files to make sure they are all present and correct.

If your console is in the Insider Preview program, there was a mention in the "known issues", that the console sometimes fails to start up from hibernation.

If you are in the Preview Program, and that happens, restart the console and then file feedback that you have that problem.

If your console is not in the Preview Program, download the Xbox Insider App, and then use the app to file feedback that you also have that issue.

HDD failure / crash

System failures

Reformats

Game files corrupted

Prior days on PC those things were the issue, physical copy and constant game saves backed up made life quite easy.