HP ProBook 4420s Support Question
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Question posted by Simojpo2 on May 2nd, 2014
How To Turn Off Touchpad On Hp Probook 4420s
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Related HP ProBook 4420s Manual Pages
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 1
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_1_98ca.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_1_98ca.png)
HP ProBook 4320s Notebook PC HP ProBook 4321s Notebook PC HP ProBook 4420s Notebook PC HP ProBook 4421s Notebook PC
Maintenance and Service Guide
SUMMARY This guide is a troubleshooting reference used for maintaining and servicing the computer. troubleshooting computer problems; and performing computer disassembly procedures. ...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 9
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_9_7c86.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_9_7c86.png)
HP ProBook 4420s Notebook PC
√
√
HP ProBook 4421s Notebook PC
√
Intel® Arrandale™
● i7-620M, 2.66-GHz (Turbo up to 3.33 GHz),
√
√
√
√
4-MB L3 cache, 4 threads
● i5-...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 10
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_10_6b16.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_10_6b16.png)
...-MB ×
1) ● 2048-MB total system memory (1024-MB ×
2, dual channel) ● 1024-MB total system memory (1024-MB ×
1)
HP ProBook
4320s
HP ProBook4
320s / 4321s
HP ProBook
4420s
HP ProBook
4421s
UMA
Discrete
UMA
Discrete
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 11
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_11_0935.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_11_0935.png)
...: ● 500-GB, 7200-rpm ● 320-GB, 7200-rpm ● 250-GB, 7200-rpm HP 3D DriveGuard (not available on Linux) Fixed 12.7-mm (0.50-in Brazil Modem cable not included
HP ProBook
4320s
HP ProBook4
320s / 4321s
HP ProBook
4420s
HP ProBook
4421s
UMA
Discrete
UMA
Discrete
√
√
√
√
√
√
√
√
√
√...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 12
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_12_fbf9.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_12_fbf9.png)
Category Ethernet Wireless
External media cards Ports
Description
HP ProBook
4320s
HP ProBook4
320s / 4321s
HP ProBook
4420s
HP ProBook
4421s
UMA
Discrete
UMA
Discrete
Supports no modem option
√
√
√
√
10/100/1000 Ethernet network interface card (NIC)
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√
√
√
...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 13
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_13_4c34.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_13_4c34.png)
Category
Description
HP ProBook
4320s
HP ProBook4
320s / 4321s
HP ProBook
4420s
HP ProBook
4421s
UMA
Discrete
UMA
Discrete
USB 2.0 (3)
√
√
√...Keyboard and
33.8-cm (13.3-in) keyboard with TouchPad
pointing devices
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√
35.6-cm (14.0-in) keyboard with TouchPad
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TouchPad only, with 2 TouchPad buttons and
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√
√
√...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 14
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_14_41a2.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_14_41a2.png)
... Premium 32 with Office 2007
√
√
√
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Ready (excludes Japan)
Windows 7 Home Premium with Office 2007 Ready - Category
Description
HP ProBook
4320s
HP ProBook4
320s / 4321s
HP ProBook
4420s
HP ProBook
4421s
UMA
Discrete
UMA
Discrete
Windows 7 Starter with Office 2007 Ready (excludes Japan)
√
√
√
√
Windows 7 Starter with...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 15
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_15_5aaa.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_15_5aaa.png)
...
Windows 7 Home Premium 32
Windows 7 Home Basic 32
Windows 7 Starter
Windows Vista Business 32
Windows Vista Home Basic 32
Windows XP Professional
HP ProBook
4320s
HP ProBook4
320s / 4321s
HP ProBook
4420s
HP ProBook
4421s
UMA
Discrete
UMA
Discrete
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 16
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_16_8eb8.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_16_8eb8.png)
Category Serviceability
Description
HP ProBook
4320s
HP ProBook4
320s / 4321s
HP ProBook
4420s
HP ProBook
4421s
UMA
Discrete
UMA
Discrete
Microsoft Office Ready DVD
√
√
√
√
DRDVD Windows 7 Home Premium/Windows 7
√
√
√
√
Professional
DRDVD Windows 7 ...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 18
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_18_6774.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_18_6774.png)
... the pointer and selects or activates items on the screen.
(3) Left TouchPad button*
Functions like the left button on an external mouse.
(4) Right TouchPad button*
Functions like the right button on and off, quickly double-tap the TouchPad off indicator
To turn the TouchPad zone on an external mouse.
*This table describes factory settings. To...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 19
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_19_20fd.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_19_20fd.png)
... Web browser is being opened or closed . Top components 11
On: Caps lock is on . ● Amber: All wireless devices are off . ● Off: The TouchPad is on. Lights
Component (1) TouchPad off indicator
(2) Caps lock light (3) HP QuickLook light (4) HP QuickWeb light (5) Power light
(6) Wireless light
Description
● Amber: The...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 72
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_72_1234.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_72_1234.png)
...it down the computer. Position the computer right-side up with 35.6-cm (14.0-in Hibernation, turn
the computer on page 51) 6. Remove the three Phillips PM2.5×3.0 broadhead screws (1) that ...the keyboard (see Keyboard on page 49). 5. If you . 2. Palm rest
Description Palm rest (includes TouchPad) ● For use with fingerprint reader and 33.8-cm (13.3-in) displays ● For use with ...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 73
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_73_d499.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_73_d499.png)
... remove the fingerprint reader cable (2) from the system board.
6.
Release the TouchPad cable connector (3), and then remove the TouchPad cable (4) from the system board.
5. Slide the palm rest to install the palm rest. Reverse this procedure to the right (2), and then turn it over from the front edge (3) until it rests upside down...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 106
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_106_765b.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_106_765b.png)
...Computer Setup
Computer Setup in Windows 7
To view the drives installed on or restart the computer. 2. Turn on the computer, select Start>Computer. On models with Computer Setup only if USB legacy support is ... arrow in the upper-right corner of the
screen, or use either a pointing device (TouchPad, pointing stick, or USB mouse) or the keyboard to navigate and make selections in this...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 113
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_113_3724.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_113_3724.png)
...Computer Setup, follow the on-screen instructions. - Your changes go into effect when the computer restarts. Turn on or restart the computer, and then press esc while the "Press the ESC key for Startup
... Save icon in the lower-left corner of the
screen, or use either a pointing device (TouchPad, pointing stick, or USB mouse) or the keyboard to the main Computer Setup screen, press esc, and...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 116
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_116_cfa7.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_116_cfa7.png)
... security keys. Password Policy (requires a BIOS administrator password) Revise password policy criteria.
HP SpareKey
Enable/disable HP SpareKey (disabled by default).
CAUTION: If you run Disk Sanitizer, the data on any computer hard drive (enabled by turning on the primary hard drive or the drive in this
Setup BIOS Administrator Password
Set up...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 120
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![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_120_3e1d.png)
...system opens and while the "F10=ROM Based Setup" message is
displayed in Computer Setup. To start Computer Setup, follow these steps: 1. Turn on the screen. Use the arrow keys to select File
> Ignore Changes And Exit. When the confirmation dialog box opens, press f10. 4....used with Computer Setup only if USB legacy support is not operating system based, it does not support the TouchPad.
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 138
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![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_138_beb9.png)
...country or region, and follow these steps: NOTE: This process takes several minutes.
1. Turn on the computer are permanently removed. Make sure that were installed at the factory. Select...up all personal files. 2. When prompted, press any keyboard key. 4. NOTE: If the HP Recovery partition has been deleted, you must be reinstalled. For additional information, refer to the ...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 140
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_140_7836.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_140_7836.png)
...SUSE Linux SLED 11 is installed, remove the Operating System disc and insert the Driver
Recovery disc. 7. Turn on -screen instructions. Click Start > All Programs > Accessories > System Tools > Backup. 2. Click Start... programs, follow these steps: 1. Software, drivers, and updates not installed by HP must be manually reinstalled. Insert the Operating System disc into the optical drive. ...
HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Maintenance and Service Guide - Page 159
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_159_037f.png)
![](/manualimages/p/7/hewlettpackard-probook-4320s-hp-probook-4320s-4321s-4420s-4421s-notebook-pcs-maintenance-service-guide-80406a2_159_037f.png)
...pin assignments 135 heat sink removal 74 spare part number 26, 74 HP Mobile Broadband Module spare part number 36 HP QuickLook 2 110 HP SpareKey enrollment 108
I internal display switch,
identifying 12, 18 internal...AC adapter 16 caps lock 11 drive 14 optical drive 15 power 11 QuickLook 11 QuickWeb 11 TouchPad 10, 11 webcam 18
M mass storage devices, spare part
numbers 33 Media Card Reader,
...
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