[Q] MTP connection file transfer problem (transferring file from pc to phone) topic

When i connect my phone to a computer, the computer recognize the device and i can transfer files from my phone to pc without a problem. But when i transfer a file from pc to my phone (either to internal or to sdcard), the copying stock in 0% and do not continue. Both my internal and sdcard has almost 5gig free space each. My pc is windows 7 and my android is using MTP connection. please help anyone..many thanks!