How to Clear All BIM 360 Cache

March 28, 2023 Sherry Pittman


The 360 cache can take up a good deal of space on your machine, and if you don’t clear it out periodically,  there may still be things in there that you are no longer even working on.

This document will show you how to clear all of the cache/pac associated with 360 projects.  This process is also useful for corrupt data in the cache.

If you want to be more selective, please refer to this blog:


The various cache folders contain a variety of files, some, including actual Revit files and links, which can consume a lot of hard drive space.


You can archive(move) or delete the content of these folders to clear room on your hard drive, remove unused projects and clear out any possibly corrupt data.

The next time you go to open the model these will all be recreated fresh.

Make sure all versions of Revit are not running when you do this process.

Cache locations:

Collaboration Cache (Version Specific)

C:\Users\%username%\AppData\Local\Autodesk\Revit\Autodesk Revit 20##\CollaborationCache\

PAC Cache


CEF Cache (Version Specific)

C:\Users\%username%\AppData\Local\Autodesk\Revit\Autodesk Revit 20##\CefCache



Desktop Connector (Optional)

Right click on a hub, project or folder and select Free Up Space


Clear Windows Temp Files

Most issues with Autodesk software that involve excessive or corrupt temp files can be resolved by deleting the contents of a user's local temp folder. To do this:

• Exit all programs.

• Press WINDOWS-R on the keyboard to bring up the Run window.

• Type %TMP% and then click OK.

• Delete the contents of the folder that opens up.

Tip: There may be files in use by background processes, so not all files will delete. Rebooting may allow all of them to be deleted.

About the Author

Sherry Pittman

Sr. Technical Support Specialist, Building<br><br>Sherry is a certified Autodesk Building Solutions Technical Support Specialist at IMAGINiT. She has been a speaker at several AUGI Cad Camps and a co-speaker at Autodesk University. She is also a certified expert in Revit Architecture. She has 30 plus years of experience in the Architectural field and supports all the Autodesk Building Solutions software. She began her career with us as an Application Engineer conducting training, product demonstrations, and implementation services. She now focuses her knowledge and dedication to the National Solution Center here at IMAGINiT.

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