I have been using Photoshop for years, and CS4 for about a year now. I have never had this error message pop up until this week. It started happening right after I did the Adobe update to 11.0.2. Everytime I try to save a PSD or JPG file now (which are the only two types of files I work with), I get this message preventing me from being able to save;
"Could not save as... because file is already in use or was left open."
I have to attempt to Save as about a dozen times before it will finally save the file. Any suggestions on what could be wrong and how to remedy it? Is it the update that caused this problem?
No, the update has nothing to do with this.
Some other application on your system has that file open, so it can't be saved over.
Photoshop is just letting you know that some other application is holding the file open, and that Photoshop cannot save over the file until that other application let's go of the file.
That's not it... I have obviously thought of that. And this error never started occurring until I updated photoshop this week. I have no other applications running that use the file. I am not doing anything different than I have done for years now with editing and saving files with photoshop.
That's not it... I have obviously thought of that.
No, that is it entirely.
You have the Windows Explorer running, anti-virus (I hope), and lots of other little services -- any of which could have a problem and keep files held open longer than they should.
People sometimes report that they cannot manipulate their folders as they want to because Explorer has a thumbs.db file open. Windows 7 apparently generates these files for compatibility with older software that may expect such files to exist in folders with, for example, photos in them.
The good news is that (with Windows 7 Professional and above) you can disable this through the Group Policy editor: