Cryptomator suddenly not opening location of files

Cryptomator has most recent update and has always worked fine. Suddenly when I go to unlock my files it says D:\ is unavailable. I have my files stored on Pcloud, in a P:\ drive. I haven’t changed anything that I can think of. I tried adding an existing vault, it doesn’t work. Not sure if I should add a new vault? I am a little nervous about losing certain files so I am hesitant to try various things.

I am not sure why it’s not working. Any help is appreciated. Also I am on Windows 10 64 bit.

EDIT: Ok so if I click on “Locate encrypted file” and then right click > Open file I am able to view the files. So that a relief. I guess I am just trying to figure out why when I unlock my folder, and click “Reveal Drive” it keeps telling me D:\ in unavailable.

In the software settings there is an option to either let the software choose a mount Point location or drive letter or you can choose your own. You should check the settings and confirm that they are correct.

Usually leaving it at automatic is fine although I tend to choose where I want it mounted.

Your vault is stored on P: as is mine.

When you choose to reveal the vault the software is supposed to choose a location where it is going to mount the unencrypted version of your files. It seems that something is going wrong so you might want to check the settings.

I’ve tried changing all the settings there, and it still doesn’t work. I am not sure what else to do. Sorry, but I am a bit new to this type of stuff.

OK,

Your Vault on your pcloud drive should still be there and should be fine.

What I would do next is delete the configuration that you have in Windows for that vault and create a new one from scratch. Tell cryptonator that you want to add an existing vault and it will want to navigate to that vault and click on the master key file. You should be prompted for your password and then let in.

Give that a try.

No luck. I removed the vault from Cryptomator, created a new one, but even the new one has the same problem. When trying to add existing vault I still get the same issue. I even tried reinstalling Cryptomator.

I can still access the current files, which is nice, but I am not able to add anything to the vault since I can’t access it.

Have you tried following the picture that I posted earlier showing how you can change the drive letter that you are using for the unencrypted vault? What happens if you choose something other than d:

You can also select a folder rather than a drive letter Perhaps that will work better for you. Tell Kryptomator to use the chosen directory and pick one in your home folder.

Same issue when I change the drive letter. Same issue when I create a brand new vault, put the vault outside of Pcloud, I think I selected a folder for a vault, not sure. I guess I can’t really figure out how to do that?

I’m really not sure why Cryptomator worked perfectly fine for a long time and then all of a sudden it isn’t working despite nothing changing on my PC except installing a new video game through Steam. It’s just kind of bizarre.

I assume there is a way to unencrypt files if I have to switch from Cryptomator? I really like Cryptomator…but if I can’t access and add files to my vault it’s kind of useless for my needs.

And I am sorry if I am making this annoying or difficult…I kind of suck at this computer stuff.

What volume type do you use? You can find the setting in Cryptomator general prefenreces, tab virtual volume.

Automatic.

However, the new issue I am having is when I unlock the vault now Cryptomator is unable to find the masterkey file for my vault.

It says my masterkey is damaged, please restore it from backup. I am not sure what to do with the file though. I do have a Masterkey.bkup file but not sure how to open it or what to do with it…

This is all so confusing. I have no clue what I did to cause this.

EDIT: Ok I figured out what to do with the bkup file, but I am still having the D:\ is unavailable issue. Oh boy…

In general, this indicates to a configuration problem.

What other choices do you have for the volume type? If you see “WinFsp (Local Drive)” in the dropdown, select it and try again. Otherwise, you have to install first WinFsp and restart Cryptomator. WinFsp is a Windows driver allowing to create virtual volumes, i.e. where no physical hardware exists but a software is emulating a volume (like Cryptomator with its encrypted filesystem).

I’m not sure if this will work in your case or not, but in my case, apparently, I ran Cryptomator as Administrator, and this issue occurred; to solve this, just quit the app completely (also in the mini tray), then run it without the admin privilege. Maybe when I encrypted the folder, I ran it without the admin privilege. Hope this helps.

TL;DR: Same issue, could not resolve, found an (inconvenient) workaround.

The same issue has happened to me. I have been using Crypto/Pcloud/Windows for years. Starting a couple of months ago, some actions - copying/moving a folder within a vault - would cause the PC to hang. A reboot fixed it but the error would reoccur every time the same activity happened. (Workaround: don’t do again :-)) but unfortunately this escalated 2 days ago and now I cannot open any existing vault on Pcloud or local, or any new vault created on P: drive or local. The same error message is returned for all - “d:\ is unavailable”. I have changed volume type to various options - currently using WinFsp (Local Drive) - but made no difference. Changing mount point from Automatic to a drive letter also made no difference. However changing to using a local chosen directory does work as long as a new or empty local folder is created. Does not work if a directory in Pcloud is chosen. Or if a drive letter is mapped to a pcloud folder.

Not ideal as I want to keep all in the cloud and not local but will have to do for now. If anyone has any suggestions I would appreciate it & am very happy to try them out.

One other comment: the effort to lock returns a ‘Lock Failed’ as does ‘Force Lock’. Anticipating corrupt files in the future.

One thing you can try. Test if possibly the vault or its config files are corrupt.

Create a brand new vault in the same location and mount it. Then copy some data to the new vault. See if everything starts working normally.

Leo, thanks for the quick response. Fortunately, the vault files are good: I copied them to a diff laptop and they opened there. On the ‘bad’ laptop, I can open them with the local directory approach but not from pcloud. So, the positive is that the vaults are good. The negative is that they cannot be opened from where they are stored.

I keep vaults on pcloud and so far no problems.

I access them from both Windows and Linux.

It’s entirely possible that there is something wrong with the installation of either pcloud or cryptomator.

Sometimes I recommend and I’m going to recommend it for you which is to create a new login on your “bad” computer with a new home directory and set up pcloud and cryptomator. From there see if you can safely and reliably access your vault on cryptomator.

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Leo, that was one excellent suggestion. Created a new user profile and everything works perfectly from there. Log back into my normal profile & it fails. Some settings/config/registry at the user profile level must be screwed up but regardless I now have full access to the vaults on pcloud again. Thank you very much for your help, that makes my life much easier :smile: .

Have a great 2026,

j

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