Help me to restore my system! thank you

[Erik]

Hello,

I have a laptop with Veracrypt. This laptop uses veracrypt to encrypt the system. It has 2 harddisks. A SSD disk from which my laptop boots and contains Windows 10. A second harddisk (2TB) which uses keyfiles only to decrypt (no password).
If I start my system, veracrypt asks before booting for a password and it boots the system. A half year ago my system stops working (after update?) and I still get the password request, but I get a blue windows screen.
Now I use the harddisk on another laptop and I can still decrypt the SSD drive with a USB M2-SSD disk drive. I have attached the screen shots to give you information about the settings.
How can I (permantly) decrypt the system disk (harddisk 1, 500MB and 465GB)? If I can't...How can I restore my other harddisk? It uses keyfiles from my SSD drive. There are 2 keyfiles in my keyfile map. keyextdisk.key and keyextdisk.zip. I used both files to decrypt the external drive, but without succes (keyextdisk.key only and keyextdisk.key/keyextdisk.zip combo). So please help me permantly decrypt the C drive first and maybe veracrypt will be able to decrypt the external drive.
Thank you very much for helping me. Very much appreciated. Please tell me the exact steps.

Best regards,
Erik

[RealTehreal]

If there is important data on the system disk, like the key files you mentioned, you should first retrieve them by mounting the system disk on another system. After creating a backup of all your critical data, you should be able to permanently decrypt the system disk using VeraCrypt.

Regarding the 2 TB drive... I can't see anything about it on the screenshots. But you should be able to mount it just like you always did. It doesn't matter if you use the original machine or another.

In case, the volume was damaged, you may be able to still mount it using either the backup header or additionally the option to just mount the volume without mounting the filesystem. In any case, you should mount in read-only mode, just to be sure to not further damage the volume:
- mount option "read only"
- if mount not possible with the above, add mount option "Use backup header embedded in volume if available"
- if mount not possible with the above, add mount option "Only create virtual device without mounting on selected drive letter"

Greets