Cross Runtime Error - pls help

Hello guys, I am using Cross for about three years now. I will specify my setup first - Notebook Lenovo IdeaPad z510 (8Gb Ram) using U46MK2 with two turntables and mixer.
I cant get Cross properly working - and I am really desperate
I did maintainance recovery few days ok
(before that i used version 3.10 with Windows 8.1 for 6 months working)
In Windows 8 I am experiencing death screens (i posted my problem here viewtopic.php?f=358&t=32695 > solution was upgrade to 8.1)
But NOW when I upgrade to 8.1 (from clean recovery - i get Run Time error C ++ - in log it says that issue is concerning KernelBase.dll and Cross cant be even lanched !!!!!!!!!!) - i tried also different versions - nothing (I reinstalled my computer five times during weekend
()
Now I am running Windows 8 with those blue screens of death if I unplug USB (in log it is associated to Kernel Power error)
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Edit: I got it working on 8.1 now - but it seeems that some particular tracks in collection is causing crash of appliacation. I analysed 5900 tracks from 6000 - but before the last 100 was finished it crash. Now I am getting everytime I go on that file - I am trying to minimize this number of files and then try to get rid of them - but how can music tracks cause breakdown od DJ app?
I cant get Cross properly working - and I am really desperate
I did maintainance recovery few days ok
(before that i used version 3.10 with Windows 8.1 for 6 months working)
In Windows 8 I am experiencing death screens (i posted my problem here viewtopic.php?f=358&t=32695 > solution was upgrade to 8.1)
But NOW when I upgrade to 8.1 (from clean recovery - i get Run Time error C ++ - in log it says that issue is concerning KernelBase.dll and Cross cant be even lanched !!!!!!!!!!) - i tried also different versions - nothing (I reinstalled my computer five times during weekend

Now I am running Windows 8 with those blue screens of death if I unplug USB (in log it is associated to Kernel Power error)
_____________________________________________________
Edit: I got it working on 8.1 now - but it seeems that some particular tracks in collection is causing crash of appliacation. I analysed 5900 tracks from 6000 - but before the last 100 was finished it crash. Now I am getting everytime I go on that file - I am trying to minimize this number of files and then try to get rid of them - but how can music tracks cause breakdown od DJ app?
