THCrap completely freezes up completely when finding games folder during patching

In the thcrap folder, you should have a logs folder with a file called thcrap_log.txt. Can you reproduce this problem (including the part where Windows tells you "this program stopped responding" and you click "yes") and send thcrap_log.txt right after that?
I'm not sure from the video, the problem happens when you click on "Find games in a specific folder...", right? Does it happen when you click on either "Find games automatically" or "Find every game on your computer (slow)"?
In the thcrap folder, you have a bin folder, and inside that, a program called thcrap_configure.exe. Can you run that one (not the one with _v3 at the end) and see if you have the same issue? If it works, can you send a screenshot of the file picker?
I see that your explorer has some quite heavy extensions. Do you mind disabling them and checking if you still have the problem without them?

thpatch / thcrap