3DCoat unable to write the folder

[Val P]

I have this issue with 3DCoat where it suddenly started giving me errors 'unable to write to the folder', 'unable to rename the file from json1.txt' and 'writing to data folder is impossible due to lack of permissions!' on program startup and 'there is not enough disk space to write the file'. My settings are in C:\Users\%MyName%\Documents\3DCoat2026

Things I've already tried:

• Running 3DCoat as administrator - doesn't help.
• Deleting 3DCoat and 3DCoat2026 from documents folder - doesn't help, the program starts broken with no text anywhere
• Reinstalling 3DCoat - doesn't help
• I can't relocate settings to another folder because I can't close the 'File write error!' window and it prevents me from selecting anything.

[Carlosan]

There is 2 locations for json1.txt
Try deleting it on

C:\Users\<username>\Documents\3DCoat2026\data\Temp
C:\Users\<username>\Documents\3DCoat2026\Temp

[Val P]

alright solved it, turns out my documents folder was set to read only by windows ransomware protection

Edited October 4 by Val P