LR 5.6 64 bit
Win7 Pro (Fully updated)
Lightroom crashes the second I push the Import... button, or if I click + next to Add Folders, it crashes after I select the folder and click "Select Folder" in the dialog box.
Worked fine 2 days ago. I don't know of any changes to my system/Windows except for an update to my MS Security Essentials definitions.
I completely uninstalled, re-downloaded, re-installed and still crashing. This happens EVERY time.
I have same problem in LR5.7 under Windows7 64bit. I reinstalled the Programm (repair programm) but Problem remains. Now I´ve reseted my preferences as described in your link. But Problem still remains. At any try to import new photos Lightroom crashes. Cannot import any new Photos anymore. Even when I create a new empty catalogue, I cannot import any Photos to that new catalogue. LR7 crashes at any import.
I my case the crash happened due to a connected Android Phone. After disconneting the Android Phone from the PC, the crash during Import did not occur anymore.