I have this problem for a while now, I honestly do not know if this is a problem or not or a bug or god knows what. From time to time, the hard drive makes a weird noise, like its blocked and when I look at the event viewer looks like this: The device, \ Device \ Harddisk0 \ DR0, Has a bad block. I ran scandisk plus other programs, some have said I have no bad hard blocks (disk scan found no problems), others yes, but some were without a license and could not fix anything. The thing is it happend the first time like a year go and if I format the computer and install windows again, everything disappears. Sometimes its does this hard block and the bad block very soon after i install the windows, somtimes it takes months, last time it happened it was like 5 months ago or something like that And another little problem that happend when i tryed to install windows to get rid of the bad block thingy: i have Windows 7, I have no problems with it, goes well, I wanted to reinstall Windows, so i've inserted the dvd, restart the computer, it say to press any key pressed, pressed it, then goes the part that its loading files or something, then it restarts itself, normal stuff till now, , then it does that windows 7 loading and then there is that blue imagine in the backround where for the first time i think it gives you the option to choose region or something like that, but the problem is, that it doesn't appear that to me anymore, the mouse works and thats it, it gets stuck there, nothing happens. Tryed rebooting several times, every time it gets stuck there Is it really a hard drive problem or maybe the motherbord is broken, although i change it like 5 months ago. Thx.