Hp ZBook 15 Mobile Workstation Bedienungsanleitung Seite 102
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An external device is not working
Follow these suggestions if an external device does not function as expected:
●
Turn on the device according to the manufacturer's instructions.
●
Be sure that all device connections are secure.
● Be sure that the device is receiving electrical power.
●
Be sure that the device, especially if it is older, is compatible with the operating system.
●
Be sure that the correct drivers are installed and updated.
The wireless network connection is not working
If a wireless network connection is not working as expected, follow these suggestions:
● To enable or disable a wireless or wired network device, right-click the Network Connection
icon on the Windows desktop in the notification area, at the far right of the taskbar. To enable
devices, select the check box from the menu option. To disable the device, clear the check box.
●
Be sure that the wireless device is turned on.
●
Be sure that the computer wireless antennas are free from obstructions.
●
Be sure that the cable or DSL modem and its power cord are properly connected and that the
lights are on.
● Be sure that the wireless router or access point is properly connected to its power adapter and to
the cable or DSL modem, and that the lights are on.
●
Disconnect and then reconnect all cables, and turn the power off and then back on.
A disc does not play
●
Save your work and close all open programs before playing a CD or a DVD.
●
Log off the Internet before playing a CD or a DVD.
●
Be sure that you insert the disc properly.
●
Be sure that the disc is clean. If necessary, clean the disc with filtered water and a lint-free cloth.
Wipe from the center of the disc to the outer edge.
●
Check the disc for scratches. If you find scratches, treat the disc with an optical disc repair kit
available at many electronics stores.
●
Disable Sleep mode before playing the disc.
Do not initiate Sleep while playing a disc. Otherwise, you may see a warning message asking if
you want to continue. If this message is displayed, click No. After you click No, the computer
may behave in either of the following ways:
◦
Playback may resume.
– or –
◦
The playback window in the multimedia program may close. To return to playing the disc,
click the Play button in your multimedia program to restart the disc. In rare cases, you may
need to exit the program and then restart it.
92 Appendix B Troubleshooting
- User Guide 1
- Safety warning notice 3
- Table of contents 5
- 1Welcome 11
- Finding information 12
- Finding information 3 13
- TouchPad 14
- Bottom 13 23
- 3 Connecting to a network 25
- Using a WLAN 26
- Setting up a WLAN 28
- Configuring a wireless router 28
- Protecting your WLAN 28
- Connecting to a WLAN 29
- Inserting and removing a SIM 30
- Connecting to a wired network 31
- Using pointing devices 33
- Using TouchPad Gestures 34
- Using the keyboard 38
- Using keypads 39
- 5 Multimedia 40
- Webcam (select models only) 41
- Thunderbolt 42
- 6 Power management 45
- Initiating and exiting Sleep 46
- Using battery power 47
- Using Battery Check 48
- Managing low battery levels 48
- Conserving battery power 50
- Using external AC power 51
- 7 External cards and devices 54
- Configuring an ExpressCard 55
- Inserting an ExpressCard 56
- Removing an ExpressCard 57
- Using a USB device 58
- Connecting a USB device 59
- Removing a USB device 59
- Handling drives 61
- Using hard drives 61
- Removing the service cover 62
- Replacing the service cover 63
- Removing the hard drive 64
- Installing a hard drive 64
- Using Disk Defragmenter 65
- Using Disk Cleanup 66
- 9Security 68
- Setting passwords in Windows 69
- Setting a DriveLock password 72
- Entering a DriveLock password 73
- Changing a DriveLock password 73
- Removing DriveLock protection 73
- Using antivirus software 75
- Using firewall software 75
- Using HP Client Security 76
- 10 Maintenance 78
- Cleaning your computer 80
- Updating programs and drivers 81
- 11 Backup and recovery 83
- Backing up your information 84
- Performing a system recovery 85
- Using Computer Setup 88
- Updating the BIOS 90
- Using MultiBoot 91
- 13 Support 95
- 14 Specifications 98
- B Troubleshooting 100
- The computer screen is blank 101
- A disc does not play 102
- C Electrostatic discharge 104
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