Lightroom Preferences Crashes

You need to disable GPU to resolve the issue.

1. Go to the %AppData%/Roaming\Adobe\Lightroom\Preferences folder.
2. Open the Lightroom 6 Preferences.agprefs file.
3. Search for useAutoBahn and change it to false, as follows:
useAutoBahn = false
4. Restart Lightroom.

Or make sure you have installed the latest GPU driver. See https://helpx.adobe.com/lightroom/kb/lightroom-gpu-faq.html.

Unfortunateln both solutions don't work. Intel driver is the latest: 10.18.10.4276, GPU disabled in Preferences.agprefs

See if this helps: https://helpx.adobe.com/lightroom/kb/lightroom-crashes-opening-preferences-win.html.

If it doesn't, see if completely resetting your preferences helps: http://www.lightroomforums.net/showthread.php?25197-Resetting-the-lightroom-preferences-file-updated

After preferences reset still crashes. Formats were ok.

Last possible solution: Uninstall LR. Delete all "Lightroom * Preferences.agprefs" for all versions (since installing LR will use the preferences from a previous version).  Reinstall LR.

I don't know of any other possible solutions that have been reported for this problem: Latest GPU driver, manually editing the preferences to disable the GPU, fixing the numbers grouping, uninstall/reinstall.

This reply was created from a merged topic originally titled Lightroom 6.4 crashes when I try to invoke Preferences..

Am using Win 7-64 and Intel HD Graphics Family on a Dell Inspiron 17R with 8Gb RAM. 

I discovered that, indeed, invoking System Info also causes LR6.4 to crash.  I made the change suggested by Sunil, and it seems to have fixed the problem when invoking Preferences; however, System Info still causes a crash.  Looking forward to LR6.5.  Thanks for your help!!