How to reset Lightroom's library?

Question

In Adobe Lightroom 3, how can I reset the library? That is, I want to remove all photos from the library.

Asked by Wavy Crab

Answer

The catalog is an *.lrcat file. If you delete it will be gone. The next time you start Lightroom tell you it cannot find the catalog and will create a new one.

There is also usually a folder called Backups next to it which contains backups of your catalog. You will also find a folder called *.previews.lrdata which is a cache which you can delete anytime, even if you do not delete the catalog. That contains previews which are created as needed.

Answered by Itai

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