DeepScreen Analysis Takes Hours

i launched an executable which avast had not yet encountered on my Win7-64 machine, and DeepScreen still has a window up saying that it will only take about 15 seconds to analyze it. i forgot my password, so i’m going to have to un-intall and re-install in any case, but has anybody ever seen this before?

That’s definitely not normal.
If you e.g. restart the machine and try again (to run that executable), does the same happen?