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To determine the actual size and features of a disk, the DEVICE_CONFIGURATION_IDENTIFY command is used, and the output of this command can be compared to the output of IDENTIFY_DEVICE to see if a DCO is present on a given hard drive. Most major tools will remove the DCO in order to fully image a hard drive, using the DEVICE ...
IDENTIFY DEVICE returns the true size of the hard drive. READ NATIVE MAX ADDRESS returns the true size of the hard drive. SET MAX ADDRESS reduces the reported size of the hard drive. READ NATIVE MAX ADDRESS returns the true size of the hard drive. An HPA has been created. IDENTIFY DEVICE returns the now fake size of the hard drive.
It maintains a whitelist of devices allowed to connect to the computer's USB ports; if a device not on that whitelist connects, it can take actions ranging from merely returning to the lock screen to encrypting the hard drive, or wiping all data on the computer.
Hot swapping may be used to add or remove peripherals or components, to allow a device to synchronize data with a computer, and to replace faulty modules without interrupting equipment operation. A machine may have dual power supplies , each adequate to power the machine; a faulty one may be hot-swapped.
Rearranges files stored on a hard disk to occupy contiguous storage locations in order to optimize computer performance dfrgui.exe: Windows 95, Windows 2000: Event Viewer: Lets administrators and users view the event logs on a local or remote machine eventvwr.msc: Windows NT 3.1: Resource Monitor (previously Reliability and Performance Monitor)
March 1 is the Global Day of Unplugging, and this year it’s on a Friday. Tell your boss you can’t use any technology — you don’t make the rules.
Windows Vista introduced a hybrid sleep feature, which saves the contents of memory to hard disk but instead of powering down, enters sleep mode. If the power is lost, the computer can resume as if hibernated. Windows 7 introduced compression to the hibernation file and set the default size to 75% of the total physical memory. [18]
Separating user data from system data can prevent the system partition from becoming full and rendering the system unusable. Partitioning can also make backing up easier. A disadvantage is that it can be difficult to properly size partitions, resulting in having one partition with too much free space and another nearly totally allocated.