I'm using Lightroom 5.6 for a while now and since yesterday evening it crashes directly after starting. I uninstalled and installed it again - same as before. I started with ALT key and selected a different catalogue - same as before. Creating a new catalogue doesn't help too.
I just get this message:
It's a german version and I don't know the exact translation - message just says "Lightroom is not longer working".
I'm using Windows 8 64bit
I found it - there was a problem with Windows Updates. I uninstalled Lightroom again, restarted my machine and Windows installed updates for more than an hour. I installed Lightroom again and everything worked.
So if anybody else has a similar problem. Look if all updates are installed.