Uinstalling and reinstalling visualcode won't reset your settings or remove your extensions.
To do a 100% fresh restart with visual code, you'll have to uinstall VS-code and remove some directories from your system.
These are all the standard places wher VS-code store files:
Storing extensions: %USERPROFILE%\.vscode
Storing backups, cache, settings, etc.: >%USERPROFILE%\AppData\Roaming\Code