Couldn't save the settings

Hi Anush98 -Here are a few steps that could help resolve the problem:

P1: Right-click on the Power BI Desktop icon and select Run as administrator. This can resolve issues related to permissions that might prevent settings from saving.

P2:C:\Users\[Your Username]\AppData\Local\Microsoft\Power BI Desktop\Cache (replace [Your Username] with your username). Clear the cache Power BI Desktop

P3: Make sure you have the latest version of Power BI Desktop, as updates can resolve known issues.

You can try to repair the app:Go to Settings > Apps & Features, find Power BI Desktop, click on it, and select Advanced options. If available, click on Repair.

P4: Power BI settings are saved in a JSON file that may become corrupted.

Go to C:\Users\[Your Username]\Documents\Power BI Desktop Store App and delete the UserSettings.json file. Power BI will recreate this file with default settings.

Uninstall and Delete any folder in location and reinstall it using below link:

C:\Users\[Your Username]\AppData\Local\Microsoft\Power BI DesktopReinstall Power BI Desktop from the official Power BI download page.

Download Microsoft Power BI Desktop from Official Microsoft Download Center

Hope this helps.