Press F1
Type user settings
Press enter
Click the "sheet" icon to open the settings.json file:
From there you can delete the file's contents and save to reset your settings.
Restart VSCode and your settings will be reset
If you want to reset everything,
go to %userprofile%\AppData\Roaming\Code and delete the whole
folder after you uninstall the VS code, then install it again.
Also in %userprofile%\.vscode delete extensions folder in case
you want to delete all extensions.