Typical Windows 7 Pop up Window with this content:
Adobe Photoshop Lightroom 64-bit
Adobe Photoshop Lightroom 64-bit has stopped working
A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available.
using Windows 7. Just recently statredf using a new SSD as C: Drive for OS and Apps. I still have OS and all apps on my old C drive but that copy of LR 5.6 bombs too. I had also moved all image files to a different external drive and created a new catalog.
First, I'd try to deleted the preferences and see if this helps:
Second: Remove and reinstall LR.
btw: When you moved your files, why did you create a new catalog? You have lost all your developments, ratings , keywords and ...