ProtonVPN before 3.2.10 on Windows mishandles the drive installer path, which should use this: '"' + ExpandConstant('{autopf}\Proton\Drive') + '"' in Setup/setup.iss.
https://github.com/ProtonVPN/win-app/compare/3.2.9...3.2.10
https://github.com/ProtonVPN/win-app/commit/2e4e25036842aaf48838c6a59f14671b86c20aa7