Does anyone know what it means when "The file is locked by another user" when there are no other users?

[Accountant-Man]

I have to exit PS and then open again. Sometimes I have to re-boot the PC.

I also have an issue, in the same mode, when the software tells me I have to use only 8 digits for the file name, although I have often used more, and they used to always work.

Win7 or Win10, 64-bit, computers have the same issues, sometimes.

[IntuitKatieB · Accepted solution]

It sounds like you may have real-time scanning enabled on ProSeries via a third party application. Excluding ProSeries from real-time backups or anti-virus programs should help resolve this issue.

[Accountant-Man]

Like Norton?

[IntuitKatieB]

Yes exactly. You can continue to run that program, but simply excluding ProSeries will do the trick. You will likely notice slightly increased speeds in the program as well.