thread exception on boot up

Since now my old Laptop (Acer Aspire 1500) is able to find the HDD under reactos, I installed it today, version r74149.

BTW: what means the 4 numbers behind the main cause? because the first one would be Access Violation, but in realation to what?

It looks like it happens in kbdclass.sys, as I know as progammer it is not always this wrong what detect to be wrong.

I was trying to create a log file but it seems in this stage not possible.

After this crash happens the kdb console comes up, Any idea for what I should look here? I have yet no kdb experience. Maybe can you give me some hints and I retry with a own builded version.