i've solved it! kinda.
On the microsoft support website there are many hotfixes that are NOT available in windows auto-update yet. The common description of them has this part: "use this hotfix ONLY if you have this problem, because it was not fully tested yet, and you cant live without it". Well, i was not scared
Unfortutately, i dont know which hotfix helped me. There is a guy in my country who distribute the packs of this updates on the local torrent tracker. I think the update that helped me was in the last october updates pack(its ~20 updates 60 mb total). So, you have several options:
a) wait until it is available in auto-update.
b) search through support section of microsoft website.
c) contact me on tohdom@ gmail.com i can upload you the hotfix packs
i want to describe my problem again (which i solved) because maybe you guys have another problem:
my USB-HDD cripple Windows 7 during file-transfers after few normal minutes of trasfer (Deferred Procedure Calls - 100% cpu). Windows 7 see the empty hdd, it still have usb connection, but without any hdd-functionality. Only reboot can fix 100% cpu issue. USB mouse, keyboard works fine.