Help me PLEASE!!! I cannot save any document in my Office 2007 Enterprise

You should not be saving any documents to this directory:
c:/users/documents/

Reason if you have Windows defender random protection feature turned on it locks the folder access to printers, scanners and save feature of office suites etc.

This is common mistake by computer users.

You should always be saving documents to folder you name and create perferrably on another partition if your computer has partition C: and 😧 etc save it to 😧 partition.

Example:
D:\Important documents\

If you need to use C: drive create the folder on the root drive in example below:
C:\My personal\
Save your document there.

this allows you to quickly save your documents and access them without looking through the windows user path.

Personally save all your documents to usb drive and make a copy on another USB drive so you do not leave any thing important on your computer reason privacy and security secondly if the computer crashes you got it backed up third you can take them to another computer if necessary.

never leave personal documents on your computer for any reason in the first place.

No documents should be left on your computer other than install and read me files.