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HI Experts<br />
750GB External Portable 2.5&quot; USB Hard Drive can not be opened sometimes or very slow, or need to be added drive letter. The laptop PC is windows 7. It looks like that my pc can not provide power to the Drive. Any experts have idea for that ? Thank you.
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HI Experts
750GB External Portable 2.5" USB Hard Drive can not be opened sometimes or very slow, or need to be added drive letter. The laptop PC is windows 7. It looks like that my pc can not provide power to the Drive. Any experts have idea for that ? Thank you.

750GB External Portable 2.5&quot; USB Hard Drive can not be opened or very slow sometimes

Windows 7 is an operating system from Microsoft. Features include multi-touch support, a redesigned Windows Shell with a new taskbar, referred to as the Superbar, a home networking system called HomeGroup, and performance improvements.

Windows 7

Storage devices include any device used for storing and retrieving digital information. Hard disk drives (HDDs) use one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. The primary competing technology for secondary storage is flash memory in the form of solid-state drives (SSDs), but HDDs remain the dominant medium for secondary storage due to advantages in price per bit and per-device recording capacity. CD-RW (Compact Disc-ReWritable) is a digital optical disc storage format that allows information to be stored outside the mechanical HDD.

Storage Hardware

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.

750GB External Portable 2.5&quot; USB Hard Drive can not be opened or very slow sometimes

750GB External Portable 2.5" USB Hard Drive can not be opened or very slow sometimes