I was unable to delete several files in my vault under Windows 10 Pro. I noticed they were all write protected, some had also the hidden and system attribute.
I had a look at this Guide article: Windows: How to remove write protection from a file inside a vault
Unfortunately, the command attrib -R /S “D:\path\to\myVault” did not help. This command did not find any files (“File not found”). I changed the command to attrib -H -R /S “D:\path\to\myVault*.*” . Now the files were found, but I still got around 20 error messages:
Not resetting system file - D:\path\to\myVault\filename
At least the command window gave me the list of files which could not be resetted with the attrib command. I changed the attributes of the 20 encrypted files manually outside the vault, and then I was able to delete them in the vault.
I just wanted to let you know. I know that the Guide article points to bug 776. Apologies if I should have posted there, I have no Github account (yet).