Summary: Super easy to replace the old hard drive. One small philips screwdriver and a few screws and the drives are replaced. Takes about five minutes tops. Anyone, and I mean ANYONE, can do it. If you do not have disks to reload your operating system make sure you either make a cd copy from your partitioned hard drive (if it hasn't failed completely) or get one from a store or online. This new hard drive does not come with an operating system. Great price. Highly recommended.
Summary: I was working on replacing my Dell Inspiron 1545 hard drive. So I get a Seagate Momentus ST250LT007 because it is more performance. Bad idea. Evidently the Dell is not compatible with that hard drive. So I back down to just replacing it with the original equipment witch is this. Although I had to partition the drive to get Windows Installer to see it and then delete the partition when installing Windows, all is good in the Dell Inspiron 1545 laptop once again.