photoshop keeps resetting itself

@Burak31859914a98j 

I think this sounds like you don't have full read/write permissions to your Windows user account.

Photoshop writes your preferences to your user account on every application exit. If it can't, it will open with fresh preferences on next launch.

@Pixel Ninja had a different problem, answered by @Ged_Traynor 

Anything for my problem?

To be even clearer, you need to choose the units of measurement you want (e.g. inches, mm, pixels) without any documents open in Photoshop. Then close and reopen Photoshop.

Yes, I tried to set the units without opening the document.

Cals meaning inch.

It is possible that changing the user name will solve most of the problems. I will come back to the topic in some time. I need to make backups

You seem to be having several problems – to deal with the just the issue of setting the default units of measurement, have you tried choosing the units you want with no documents open (then closing and reopening Photoshop?

I assume your term "Cals" is a mistype.

I changed the settings and still the same problem. It keeps coming back to Cals.
Ged_Traynor hinted that the problem might be the username with latin extended characters.

I will create a new user account and get back with an answer.

@Pixel Ninja see this related thread

https://community.adobe.com/t5/photoshop-ecosystem-bugs/i-d-like-to-know-how-to-disable-the-startup-tutorial-about-generative-ai/idi-p/14100755

Set the units (Settings > Units & Rulers) you want to be the default one to be in Photoshop (and almost anything else, such as choice of font, size, and leading) without any documents open, then close and reopen the application.

No, this is not a pop-up problem.

Every time I open Ps a "what's new" tuttorial pops up. I go through it all and after restarting it appears again.

When creating a new document. I change the units from inches to centimeters. After closing the program - it goes back to inches.

I turn on the ruler. After closing the program - it disappears.

I have been using Photoshop since version CS2 (2005). Before the upgrade there were no such problems.