Proton AG is a software developer for Windows.
It is reported that the following Windows processes are part of Proton Mail Bridge for Windows:
If you want to remove Proton Mail Bridge for Windows from your computer, just go to Start > Control Panel > Add/Remove programs and select Proton Mail Bridge for Windows from the list of programs.
It is reported that the following Windows processes are part of Proton Drive:
If you want to remove Proton Drive from your computer, just go to Start > Control Panel > Add/Remove programs and select Proton Drive from the list of programs.