The day before yesterday I had no problems.
Today I cannot export my Publisher document to PDF or any other file type. When I Save As or Export, I get a message that says: The disk you are trying to save to is write-protected. Make the disk read/write or use a different disk.
I checked that the folders I am trying to save in are not marked Read Only, and that my user account has the appropriate Access Control Permissions. Indeed, there is no directory on my hard drive that I can export or save to from Publisher, not even directly to SkyDrive.
I checked to see if I have the problem from within Word, Excel, and Notepad, and they save anywhere I select.
I tried repairing my Office installation, but the Publisher problem persisted. I then uninstalled the Office suite and reinstalled it from office.com. The Publisher error remains.
What changed? Well, I did do some things on my computer yesterday that could possibly have caused this. I turned on some Windows Features, specifically Internet Information Services 8.0 and Active Directory Lightweight Directory Services. I am running an FTP server now. I turned off the Active Directory Lightweight Directory Services feature after I discovered I didn't need it for my FTP server. I don't know if these changes are the causes of my Publisher save problem, but they are the only major system change that occurred between the problem-free state and my current condition.
The only thing I can think of at this point is to run a System Restore to the point before I turned on Active Directory Lightweight Directory Services. However, I am concerned that doing so will cause my Office installation to become unusable. The reason for my fear is that I performed a System Restore before. I had uninstalled Office after the date of the Restore Point I selected. It attempted to restore Office, but nothing worked, and I could not repair, uninstall, or reinstall Office. All the program links were visible on my Start Screen but they didn't launch the apps. I ended up having to refresh Windows 8. I do not want to have to refresh Windows again if I can help it.