In Design not saving or exporting

[Lancs Police]

I am not able to save, save as or export any documents from any CC programme?

Any ideas?

[Willi Adelberger]

You should check your permissions to write if it happens with all programs.

Is it a server or do you have the problem locally?

[Derek Cross]

How much RAM and spare hard disk capacity do you have?

[Eugene Tyson]

Try resetting your preferences:
The easiest way to reset everything is to delete the InDesign preferences: as soon as InDesign starts to boot hold down Shift, Alt, Ctrl (and Apple/Cmd if working on a Macintosh). A dialog will appear asking to delete the InDesign Preferences, select 'Yes' on this dialog.
Further info and instructions here if needed:
https://helpx.adobe.com/in/indesign/kb/indesign-preferences-support-file-locations.html

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Reinstalling rarely fixes everything - you can do a complete reinstall using the
Creative Cloud Cleaner Tool https://helpx.adobe.com/creative-cloud/kb/cc-cleaner-tool-installation-problems.html

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There is an update to InDesign 17.01

https://community.adobe.com/t5/indesign-discussions/indesign-17-0-1-improved-performance-and-bug-fix...

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Rollback to a previous InDeisgn version

https://helpx.adobe.com/download-install/using/install-previous-version.html#:~:text=Open%20the%20Cr....