Scalp sensitivity has several origins. It could be caused by an imbalance in the sebum secretion process, which leads to irritation. Pollution and stress can also irritate the scalp. In fact, pollution coats the hair in harmful elements that create a dull film over the hair and, like stress, generate free radicals.
Hard drive sizes. Hard drives come in two basic physical sizes: 2.5-inch and 3.5-inch. These sizes refer to the size of the data platters, not the size of the hard drive mechanism. Traditionally, 2.5-inch drives are used for laptops while 3.5-inch drives are used for desktop computers. Some compact desktops also use the smaller drives to enable a smaller form factor for the computer.
Hardware & Devices. external hard drive doesn't show up on pcI have a Seagate External Hard drive, Desk Goflex 3 TB. I'm using it for sevral mounth in windows 7 and it's working fine. Now, I bought a new latop using windows 7 as well, and it's not recognizing my hard drive.The hard drive doesn't appear in the Disk Management at all.oesn't show external drive anymore but visible in the disk managementI have a 2,5 500GB external hard-drive with a single partition (NTFS). I can see it in the disk management utility (see attached screenshot) but it doesn't have a drive letter nor can't I assign one.