Hi, I have recently bought Samsung galaxy S5 device. When I tried to connect it to my computer I nothing happend (what should have happen is that it will pop up the "What do you want to do? Go to folder/..." menu). So I tried another usb socket. still the same problem. I have Ubunto install as a sperate OS on my computer, and there everything is working fine - so the problem is not in the cable/USB on my computer. I went to Device manager and under "Portable devices" I see the "SAMSUNG Mobile MTP Device" icon with a yellow mark. I open it and I see "this device is not working properly because windows cannot load the drivers required for this device. (code 31)". I also have "SAMSUNG Mobile USB Modem" under modem in device manager (but it says that this device is working properly). I tried to remove the "SAMSUNG Mobile MTP Device" and double click it and choose "update driver"->"search online". It found the driver but was unable to install it (got a "access deined" screen). **This is not a problem of registry "UpperFilter"/"LowerFilter" problem. I saw it online while I was google a soultion and this is not my case*** I also tried to install the driver by installing "samsung KIES". It didn't help. When I connect the decive and go to Windows Update -> a new update for samsung mobile is showing but when I choose it and click update it fails everytime. I run antivirus and this is not a case. I am pretty lost. I know that if I will format my computer and install Windos 7 it will solve the problem but I don't want to do this drastic step. Can someone please help me? Thanks!!!