Lightroom Freezing in synch on startup

[Wilson T274595232h3f]

I am running Photoshop Lightroom 6.0. When the pp opens a popup appears "Lightroom needs to do some housekeeping 69% complete this may take awhiloe. It has been stuck fir over 24 hours and The rest of the main window is blacked out, so I cant try any of the suggestions about filtering and looking for synching photos. I tried permanently deleting trash but that did not solve it. Ideas?

[kglad]

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

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[Rikk Flohr: Photography]

Kill the Lr App

Restart your computer

Relaunch Lightroom Desktop

Let it run - does it clear up in under an hour?