Performing HP EliteBook 840 system recovery

HP EliteBook 840 11.1V 4520mAh laptop battery

Using F11 completely erases hard drive contents and reformats the hard drive. All files that you have created and any software that you have installed on the computer are permanently removed. There covery tool reinstalls the operating system and HP programs and drivers that were installed at the factory.Software not installed at the factory must be reinstalled.

To recover the original hard drive image using f11:
1.If possible, back up all personal files.
2.If possible, check for the presence of the HP Recovery partition: From the Start screen, type C, and then select Computer.

NOTE:If the HP Recovery partition is not listed, you must recover your operating system and programs using the Windows 8 operating system media and the Driver Recovery media (both purchased separately).

3.If the HP Recovery partition is listed, restart the computer, and then press ESC while the "Press the ESC key for Startup Menu" message is displayed at the bottom of the screen.
4.Press f11
5.Follow the on-screen instruction

A Brief Introduction to Power-On Self Test in ASUS ux31e

ASUS UX31E Ultrabook 7.4V 6840mAh laptop battery

When you turn ON the ASUS, it will first run through a series of software-controlled diagnostic tests called the Power-OnSelf Test (POST). The software that controls the POST is installed as a permanent part of the Notebook PC's architecture. The POST includes a record of the Notebook PC's hardware configuration,which is used to make a diagnostic check of the system. This record is created by using the BIOS Setup program. If the POST discovers a difference between the record and the existing hardware, it will display a message on the screen prompting you to correct the conflict by running BIOS Setup. In most cases the record should be correct when you receive the Notebook PC. When the test is finished,you may get a message reporting "No operating system found" if the hard disk was not preloaded with an operating system. This indicates that the hard disk is correctly detected and ready for the installation of a new operating system.

How to use Compatibility View in Internet Explorer 9 in Samsung NP780Z5E

SAMSUNG NP780Z5E 15.1V 6050mAh laptop battery

Websites that were designed for earlier versions of Windows Internet Explorer might not display correctly in Internet Explorer 9. However, you can often improve how a website will look by using a feature called Compatibility View.

When you turn on Compatibility View, the website you're viewing will be displayed as if you are using an earlier version of Internet Explorer.

If Internet Explorer recognizes a webpage that isn't compatible, you'll see the Compatibility View button in the Address bar. To turn Compatibility View on, click the Compatibility View button to change the icon from an outline to a solid color .

From now on, whenever you visit this website, it will be displayed in Compatibility View. However, if the website receives updates that will display it correctly in the current version of Internet Explorer, Compatibility View will automatically turn off.

Note: Not all website display problems are caused by browser incompatibility. Interrupted Internet connections, heavy traffic or problems with the website can also affect how a webpage is displayed.

Knowledge of using ASUS N56VZ AC Power

The ASUS PC power is comprised of two parts, the power adapter and the battery power system. The power adapter converts AC power from a wall outlet to the DC power required by the Notebook PC. Your Notebook PC comes with a universal AC-DC adapter. That means that you may connect the power cord to any 100V-120V as well as 220V-240V outlets without setting switches or using power converters. Different countries may require that an adapter be used to connect the provided US-standard AC power cord to a different standard. Most hotels will provide universal outlets to support different power cords as well as voltages. It is always best to ask an experienced traveler about AC outlet voltages when bringing power adapters to another country.

ASUS N56VZ Series 10.8V 5200mAh laptop battery

WARNING! DO NOT connect the AC power cord to an AC outlet prior to connecting the DC plug to the Notebook PC. Doing so may damage the AC-DC adapter.

IMPORTANT! Damage may occur if you use a different adapter to power the Notebook PC or use the Notebook PC’s adapter to power other electrical devices. If there is smoke, burning scent, or extreme heat coming from the AC-DC adapter, seek servicing. Seek servicing if you suspect a faulty AC-DC adapter. You may damage both your asus battery pack(s) and the Notebook PC with a faulty AC-DC adapter.

This Notebook PC may come with either a two or three-prong plug depending on territory. If a three-prong plug is provided, you must use a grounded AC outlet or use a properly grounded adapter to ensure safe operation of the Notebook PC.

WARNING! THE POWER ADAPTER MAY BECOME WARM TO HOT WHEN IN USE. BE SURE NOT TO COVER THE ADAPTER AND KEEP IT AWAY FROM YOUR BODY.

Unplug the power adapter or switch off the AC outlet to minimize the power consumption when the Notebook PC is not in use.

Symptoms of HP Pavilion TouchSmart 11 Hard Drive Issues

The symptoms of hard drive issues can be traced to connector issues, shock events, software issues, and more. The following sections summarize some of these.
Connector issues
It is important to check the physical connector that extends from the hard drive to the system board. A hard drive that is not detected by the BIOS or operating system may need adjustment.
Note: The following information is not applicable to Solid State Drives. In the event of an issue with an SSD, the HP Diagnostics should be run. Symptoms may include the following:
 The SSD drive is no longer recognized by the notebook.
 You receive an error message during Power On Self-Test (POST) that says "Imminent
drive failure."
 Your notebook spontaneously restarts when the Windows OS is running.
Shock events 
With each new generation of hard drives, manufacturers make improvements to the drive’s susceptibility to shock events. However, hard drives are fragile, and if they are exposed to shock events beyond their specifications, they can fail.
Shock events can cause read/write head misalignment, or contact between the read/write heads and the media, resulting in symptoms such as a clicking noise, the failure to complete servo, and/or an inaccessible boot device message.
Typically, these symptoms result from a significant bump or drop, due to the following factors:
 Non-operational shock (when the notebook is turned off)
–or–
 Operational shock (when the unit is turned on and the hard drive is reading or writing data)
Shock events may cause different error messages to be displayed such as “Non-system disk” or “No boot device”.

HP Pavilion TouchSmart 11 10.8V 3180mAh laptop battery

Software issues
Some hard drive performance problems appear to mimic hard drive failure, but may actually becaused by software issues. These software issues include (but are not limited to):
 File corruption
 File fragmentation
 Read errors
File Corruption
One of the most difficult software problems to trace is file corruption, because corruption occurs very easily during routine computer handling. For example, powering off the notebook before the OS has completed the shutdown process can create corrupted boot files that ultimately result in blue screens and/or continuous reboots.
Issues such as blue screens, application lockups, and other occurrences are caused by write splices.
A write splice is an incomplete write to a sector of the HDD. Upon the next read of that sector, the OS encounters incomplete data, and marks this area as a bad sector. The OS remaps a reserved sector in its place.
If write splices continue to occur with increasing frequency, errors such as blue screens, application lockups, and other occurrences will result, because the HDD has reached the Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.) attribute threshold. S.M.A.R.T. technology was developed by a number of major hard drive manufacturers to increase reliability of drives.
File Fragmentation
Hard drive performance is also degraded when file fragmentation is not reduced by regular software maintenance. Over time, the hard drive file structure becomes fragmented due to continuous creating, editing, copying, and deleting of files. New data is written to the hard drive on a “first available space” basis. Fragmentation occurs when an entire file or application is not stored contiguously on the hard drive. Once fragmentation occurs, the hard drive through put performance is impacted,
because it must seek the data from multiple locations across the hard drive.
Read Errors
HDDs can experience issues due to read errors. In this situation, a low-level format of the drive can be performed. Refer to your HDD manufacturer for low-level format utilities or download the HP File Sanitizer for HP Protect Tools
Other software issues may include viruses, application, and operating system (OS) bugs.  

If the ACER Aspire V3-111 video appears abnormal, you need to...

ACER Aspire V3-111 15.2V 3220mAh laptop battery

1.•If permanent vertical/horizontal lines or dark spots appear in the same location, the LCDis faulty and should be replaced.
•If extensive pixel damage is present (different colored spots in the same locations on thescreen), the LCD is faulty and should be replaced.
NOTE:Make sure that the computer is not running on battery alone as this may reduce display brightness.Adjust the brightness to its highest level.
2.the settings. If the display is too dim at the highest brightness setting, the LCD is faulty andshould be replaced.Check the display resolution is correctly configured:
3.•Minimize or close all Windows.
•If display size is only abnormal in an application, check the view settings and control/mouse wheel zoom feature in the application.
•If desktop display resolution is not normal, right-click on the desktop and select Personalize Display Settings.
•Click and drag the Resolution slider to the desired resolution.
•Click Apply and check the display. Readjust if necessary.Roll back the video driver to the previous version if updated.
4.Remove and reinstall the video driver.
5.Check the Device Manager to determine that:
6.•The device is properly installed. There are no red Xs or yellow exclamation marks
•There are no device conflicts
•No hardware is listed under Other DevicesRun the Windows Memory Diagnostic from the operating system DVD and follow the on-screen prompts.