Is that a Partha Gimp 2.10.0? - not the portable version.
Gimp 2.10 creates a Gimp profile
C:\Users\your-name\AppData\Roaming\GIMP\2.10\.. and Appdata is a hidden folder
Find the Windows control panel and in File explorer settings enable 'hidden folders'
![Image](https://i.imgur.com/aa3u0ko.jpg)
Then you can easily see the Appdata folder and follow it through to the Gimp 2.10 user profile.
![Image](https://i.imgur.com/2MxtA1M.jpg)
Do not delete your old Gimp profile. Back it up and keep it safe. You might need it later.
Rename to something like C:\Users\your-name\.ex-gimp-2.8