I am a Proton Plus subscriber, and as a paying customer I expect a user experience and level of integration similar to what most competing cloud storage services already provide regarding backup and file synchronization.

I use Proton Drive not only as a backup tool, but also as a working storage location.
However, there is currently no option to mount Proton Drive as a standard virtual disk on Windows — for example as drive “P:\” in applications that interact directly with the file system.

This feature is essential for professional and productivity-focused workflows because it would:

make the entire Drive accessible through the native Windows file system and 3rd-party apps (Total Commander, IDEs, CAD, office software, etc.)

improve handling and organization of large amounts of files

provide a clearer overview of storage usage, i.e. folder and sub-folder sizes, which is crucial to verify that all intended files and folders have been synchronized correctly, improving control and speed of work

remove current workflow limitations associated with selective sync

Expected capabilities of this feature

✔ Visible as a regular drive letter in Windows
✔ Full compatibility with standard file operations
✔ Optional enable/disable by user preference
✔ Security preserved (end-to-end encryption)
✔ On-Demand Sync remains available as a complementary feature

Summary

This feature would provide Proton Drive with full usability and accessibility —
a natural, intuitive way to work with data → fewer clicks, more productivity.

It would bring Proton Drive to the same level as major cloud drive services
that already support virtual disk mounting.

Thank you for considering this feature request!