HP ZBook 15u G3 Mobile Workstation (ENERGY STAR) User Manual Page 62
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1. Select Start > All Programs > Intel > Intel Rapid Storage Technology.
2. Click the Acceleration link, and then click the Disable Acceleration link.
3. Wait for the Acceleration Mode to complete.
4. Click the Reset to Available link.
IMPORTANT: You must temporarily disable SRT when changing RAID modes. Make the change and then re-
enable SRT. Failure to temporarily disable this feature will prevent you from creating or changing RAID
volumes.
NOTE: HP does not support SRT with self-encrypting drives (SEDs).
Improving hard drive performance
Using Disk Defragmenter
As you use your computer over time, the les on the hard drive become fragmented. A fragmented drive
means data on your drive is not contiguous (sequential) and, because of this, the hard drive works harder to
locate les, thus slowing down the computer. Disk Defragmenter consolidates (or physically reorganizes) the
fragmented les and folders on the hard drive so that the system can run more eiciently.
NOTE: It is not necessary to run Disk Defragmenter on solid-state drives.
After you start Disk Defragmenter, it works without supervision. However, depending on the size of your hard
drive and the number of fragmented les, Disk Defragmenter may take more than an hour to complete.
HP recommends defragmenting your hard drive at least once a month. You may set Disk Defragmenter to run
on a monthly schedule, but you can defragment your computer manually at any time.
To run Disk Defragmenter:
1. Connect the computer to AC power.
2. Select Start > All Programs > Accessories > System Tools > Disk Defragmenter.
3. Click Defragment disk.
NOTE: Windows includes the User Account Control feature to improve the security of your computer.
You may be prompted for your permission or password for tasks such as installing software, running
utilities, or changing Windows settings. Refer to Help and Support. To access Help and Support, select
Start > Help and Support.
For additional information, access the Disk Defragmenter software Help.
Using Disk Cleanup
Disk Cleanup searches the hard drive for unnecessary les that you can safely delete to free up disk space and
help the computer to run more eiciently.
To run Disk Cleanup:
1. Click Start > All Programs > Accessories > System Tools > Disk Cleanup.
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:
52 Chapter 8 Drives
- User Guide 1
- Safety warning notice 3
- Table of contents 5
- 1 Welcome 11
- Finding information 12
- Component Description 14
- TouchPad 17
- Bottom 13 23
- 3 Connecting to a network 25
- Using a WLAN 26
- Conguring a wireless router 27
- Setting up a WLAN 27
- Protecting your WLAN 28
- Connecting to a WLAN 28
- Connecting to a wired network 31
- Using pointing devices 32
- Using pointing devices 23 33
- Scrolling 34
- 2-nger pinch zoom 34
- 2-nger click 34
- Rotating (select models only) 35
- Using the keyboard 36
- Using keypads 37
- 5 Multimedia 41
- Connecting headphones 42
- Connecting a microphone 42
- Webcam (select models only) 43
- DisplayPort 45
- 6 Power management 49
- Initiating and exiting Sleep 50
- Using battery power 51
- Using Battery Check 52
- Managing low battery levels 52
- Using external AC power 53
- Testing an AC adapter 54
- 7 External cards and devices 56
- Using smart cards 57
- Using a USB device 58
- Connecting a USB device 59
- Removing a USB device 59
- 8 Drives 61
- Using Disk Defragmenter 62
- Using Disk Cleanup 62
- 9 Security 64
- Setting passwords in Windows 65
- Setting a DriveLock password 68
- Entering a DriveLock password 69
- Changing a DriveLock password 69
- Removing DriveLock protection 69
- Using antivirus software 71
- Using rewall software 71
- 10 Maintenance 74
- Updating programs and drivers 75
- 11 Backup and recovery 76
- Backing up your information 77
- Performing a system recovery 78
- Using Computer Setup 81
- Updating the BIOS 83
- 14 Support 88
- Component 89
- (1) Serial number 89
- (2) Product number 89
- (3) Warranty period 89
- 15 Specications 90
- 16 Accessibility 91
- B Troubleshooting 93
- C Electrostatic discharge 96
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