Can you check your %TEMP% directory for any log files and post them here (or as a Gist)?

Also check whether python -m pip works.

Typically what happens is that there is some extra configuration or some other issue that causes the pip installation to fail, and so as a result pip is not installed.

python -m pip work

I have some log file with python name, wich one do you want, some of them are named, JustForMe, i Suggest to not post it Right ?

It 's work on my personnal windows 10 machine but not on win11

I have some log file with python name, wich one do you want, some of them are named, JustForMe, i Suggest to not post it Right ?

The ones with "pip" in the name will be most relevant.

If you want to look through it yourself first, you might find an error message - there's a python -m ensurepip (equivalent) in there, and so when that fails you often get a regular Python error message or traceback.