HP ProBook 645 G1 Notebook PC - Manual (Page 74)

Using Disk Cleanup
Disk Cleanup searches the hard drive for unnecessary files that you can safely delete to free up disk
space and help the computer to run more efficiently.
To run Disk Cleanup:
1. On the Start screen, type disk, click Settings, and then select Free up disk space by deleting
unnecessary files.
2. Follow the on-screen instructions.
Using HP 3D DriveGuard (select models only)
HP 3D DriveGuard protects a hard drive by parking the drive and halting data requests under either of
the following conditions:
● You drop the computer.
● You move the computer with the display closed while the computer is running on battery power.
A short time after the end of one of these events, HP 3D DriveGuard returns the hard drive to normal
operation.
NOTE: Because solid-state drives (SSDs) lack moving parts, HP 3D DriveGuard is unnecessary.
NOTE: A hard drive in a primary hard drive bay or in a secondary hard drive bay is protected by HP
3D DriveGuard. A hard drive installed in an optional docking devices or connected to a USB port is
not protected by HP 3D DriveGuard.
For more information, see the HP 3D DriveGuard software Help.
Identifying HP 3D DriveGuard status
The hard drive light on the computer changes color to show that a drive in the primary hard drive bay
and/or the drive in a secondary hard drive bay (select models only) is parked. To determine whether a
drive is currently protected or whether it is parked, view the icon on the Windows desktop in the
notification area, at the far right of the taskbar, or in the Mobility Center:
●
If the software is actively protecting the drive, a green check mark is superimposed over the
icon.
●
If the software has been disabled, a no symbol is superimposed over the icon.
●
If the software has parked the drive due to a shock event, an orange cone is superimposed
over the icon.
Using RAID (select models only)
Redundant Arrays of Independent Disks (RAID) technology allows a computer to use two or more
hard disks at the same time. RAID treats multiple drives as one contiguous drive, either through
hardware or software settings. If multiple disks are set up to work together in this fashion, they are
referred to as a RAID array. For more information, see the HP website. To access the latest user
guides, contact support. For U.S. support, go to
http://www.hp.com/go/contactHP . For worldwide
support, go to http://welcome.hp.com/country/us/en/wwcontact_us.html ..
64 Chapter 8 Drives