Hey so firstly, I have spent about 5 hours searching through these and many other forums looking for some sort answer. I am very noobish when it comes to this stuff. So when I plug in my external hard drive (ComStar 650gb) it seems to take a good 5-10 mins before it is detected by either of my comps. PC = win xp, Laptop = W7 When it finally is detected, it shows up as USB Mass Storage device. Drivers are all working fine, updated etc. I have updated everything I possible can on my computers, Motherboard etc. I go into Device manager and its there and working aparently. When I go to disk management, it shows up as disk 1, but I cannot format it, the only option is to initialize it. So I try to initialize it and I get an error saying that it cannot be initialized. I don't know what else to include, but if any other info is needed just let me know. I'm expecting those extremely useless posts about "use the search" etc, but I already have and haven't found the same problem. If I missed it, then how bout just linking it to me in place of "search for it" since you have obviously searched for and found the topic.