Toshiba L50b User Guide

							121Utilities
TOSHIBA Application Installer
TOSHIBA Application Installer
The TOSHIBA Application Installer allows you to reinstall the 
drivers and applications that were originally bundled with 
your computer.
You must have an Internet connection to reinstall 
applications.
To reinstall drivers and applications:
1To access TOSHIBA Application Installer from the Start 
screen begin typing 
Application Installer. 
2Click or touch 
TOSHIBA Application Installer.
The TOSHIBA Application Installer window appears.
   
 
 
(Sample Image) TOSHIBA Application Installer selection 
screen
3Click or touch the item you want to install.
4Click or touch 
Install, then follow the on-screen prompts 
to complete the installation process.
NOTE 
						

							122
Chapter 6
If Something Goes 
Wron g
Some problems you may encounter when using your 
computer are relatively easy to identify and solve. Others 
may require help from your network administrator or the 
manufacturer of the software program.
This chapter aims to help you solve many problems by 
yourself. It covers the problems you are most likely to 
encounter.
If all else fails, contact Toshiba. You will find information on 
Toshiba’s support services at the end of this chapter. 
Problems that are easy to fix
Your program or application stops responding.
The operating system allows for the use of both 
applications (“Apps” used with the Windows® “Modern 
UI”) and programs (used in the traditional Windows® 
desktop environment). For the purpose of simplifying the 
information we will use the terms interchangeably in this 
chapter.
NOTE 
						

							123If Something Goes Wrong
Problems when you turn on the computer
If you are working in a program that suddenly freezes, 
chances are the program has stopped responding. You can 
exit the program without shutting down the operating system 
or closing other programs.
To close a program that has stopped responding:
1Press 
Ctrl, Alt, and Del simultaneously (once), and then 
click or touch 
Ta s k  M a n a g e r.
The Task Manager window appears.
2Select the program or application you want to close, and 
then click or touch 
End Task in the lower right corner.
Closing the failed program should allow you to continue 
working. If it does not, continue with the next step.
3Close the remaining programs one by one by selecting 
the program name, then select 
End Task.
Closing all programs should allow you to continue 
working. If it does not, power off your computer, and 
then restart it.
Problems when you turn on the computer
These problems may occur when you turn on the power.
The computer will not start.
Make sure you attached the AC adaptor and power 
cord/cable properly.
Press and hold the power button for at least 10 seconds.
If you are using the AC adaptor, check that the wall outlet is 
working by plugging in another device, such as a lamp.
Verify that the computer is on by looking at the Power 
button. If the button is glowing, the computer is on. If the 
button is not lit, try turning the computer off and then on 
again.
If you are using an AC adaptor, verify that the computer is 
receiving power from the external power source by checking 
the AC power light located on the left side of the computer. If 
the indicator is glowing, the computer is connected to a live 
external power source. 
						

							124If Something Goes Wrong
Problems when you turn on the computer
The computer displays the WARNING RESUME 
FAILURE/Windows Error Recovery – Windows did not shut down 
successfully
 message.
To continue, select 
Start Windows normally. This can 
happen if the computer was put into Sleep mode and the 
battery has discharged. If you performed a shutdown before 
this message was displayed, a program or driver may have 
prevented Windows
® from shutting down.
Data stored in the computer’s memory has been lost. Data 
stored in the computer’s internal storage drive may not be 
affected.
Always save your data even when you are using Sleep 
mode. If your battery fully discharges, information that has 
not been saved will be lost. Your computer can be 
configured to warn you when the battery is running low see 
“What to do when the main battery runs low” on page 85. 
If you are running on battery power, it is recommended that 
you do not leave the computer in Sleep mode for long 
periods of time.
To charge the battery, leave the computer plugged into a live 
wall outlet for several hours. For more information see 
“Charging the main battery” on page 81. 
The AC power light is blinking.
If the AC power light is blinking, try the following steps:
1Connect the AC adaptor to a different power outlet, 
preferably in a different room. If the computer starts 
normally, there may be a problem with the AC outlet 
itself, or the voltage level available from it.
2Verify that the AC adaptor is the correct unit for your 
computer model. The computer may not be able to start 
from an AC adaptor that is rated for less current 
(amperage) than the computer requires, even if the rated 
voltage is correct, and the plug fits correctly in the DC-IN 
socket. The labels on the bottom of the computer and 
the AC adaptor show the specifications for voltage (“V”) 
and current (“A”) for each device. The voltage level must 
match exactly. The amperage rating of the AC adaptor 
must be equal to or greater than that required by the 
computer. 
						

							125If Something Goes Wrong
The Windows® operating system is not working
3If your computer has a removable battery, connect the 
AC adaptor to the computer. Leave the battery out of the 
computer. Try turning the computer on again. 
If the computer starts normally, the battery may need 
charging, may be depleted, or may be defective. Turn 
the computer off, insert the battery, turn the computer 
on, and then leave the computer running for several 
hours, which will deliver a slow, steady “trickle-charge” 
to the battery. Once the battery has been trickle-
charged, it may begin working correctly again. 
If the trickle-charging does not prove effective, you can 
connect to Support Online by going to Toshiba support at 
support.toshiba.com.
The battery light is blinking when the computer is 
on.
If the battery light is blinking when the computer is on, this 
indicates a power mismatch. Do the following:
1Check the OUTPUT specifications on the AC adaptor 
(for example, DC 19V – 3.95A)
2Check the INPUT specifications on the bottom of the 
computer. 
The output specifications of the AC adaptor must match 
the input specifications of the computer. 
3If the specifications do 
not match, locate and use the 
AC adaptor that shipped with your computer. If the 
specifications 
do match, contact Toshiba. See 
“Contacting Toshiba” on page 150. 
The Windows® operating system is not 
working
Once you are familiar with your computer and used to the 
way the operating system responds to your work routine, 
you can easily detect if the operating system is not working 
correctly. For example:
❖The operating system fails to start after the initial startup 
appears.
❖The operating system takes a long time to start.
❖The operating system responds differently from the 
normal routine.
❖The screen does not look right. 
						

							126If Something Goes Wrong
The Windows® operating system is not working
Unless a hardware device has failed, problems usually occur 
when you change the system in some way such as installing 
a new program or adding a device.
If you experience any of these problems, use the options in 
the Startup menu to fix the problem.
Using Startup options to fix problems
If the operating system fails to start properly, you may need 
to troubleshoot the Operating System and/or its settings. 
There are several options to choose from depending on the 
severity of the problem and your level of expertise with 
computers.
If Windows
® fails to start properly twice, the Windows® Boot 
menu will launch. To enter the Advanced Startup options 
manually:
1From the Start or Desktop screen, move your pointer to 
the upper-right corner of the screen or swipe in from the 
right edge.
2When the Windows
® charms appear, click or touch the 
Settings ( ) charm.
3Click or touch 
Change PC Settings.
4Click or touch 
Update and recovery.
5Click or touch 
Recovery.
6Click or touch 
Restart Now under Advanced 
Startup
.
The computer restarts.
7Click or touch 
Troubleshoot from the menu. 
You now have several options:
Refresh your computer
❖Your files and personalization settings won't change
❖Your computer settings will be changed back to their 
defaults
❖Your Apps from the Windows
® Store are retained
❖Apps you installed from discs or Web sites are removed
❖A list of removed apps is saved to your desktop
For more information, see “Refresh your PC (with user’s 
data)” on page 51. 
						

							127If Something Goes Wrong
The Windows® operating system is not working
Reset your computer
❖All of your personal files and apps are removed
❖Your computer settings are changed back to their 
defaults
For more information, see “Reset your PC” on page 53.
Advanced options
Choosing this option presents you with another set of 
options:
System Restore
❖System Restore allows you to use a Restore point to 
return the computer to a state at which it was performing 
properly. Restore points may be created: 
❖When new hardware or software is installed
❖Manually by the user
System Image Recovery
Windows
® will “Recover” the Operating system using a 
specific image provided by the user.
Startup Repair
This feature automates the repair process. The Operating 
System will automatically look for problems and repair them 
if possible.
Command Prompt
The command prompt is a very powerful tool for advanced 
users. 
Startup Settings
In previous Operating Systems the majority of the options 
found on this menu were available by pressing the 
F8 key 
during the Windows® boot process:
❖Enable low resolution video mode
Restarts Windows
® using your current video driver at low 
resolution. This allows you to reset your display settings 
in the event they have been improperly set.
❖Enable debugging mode
Starts Windows
® in an advanced troubleshooting mode 
						

							128If Something Goes Wrong
The Windows® operating system is not working
❖Enable boot logging
Creates a file that lists all the drivers that are installed 
during startup
❖Enable Safe Mode
Starts Windows
® with a minimal set of drivers and 
services. If the computer starts and runs in Safe Mode, 
you will know the Operating System is most likely 
working properly and that you should look to third-party 
applications or drivers for the source of your problem.
❖Disable driver signature enforcement
Allows drivers containing improper signatures to be 
installed
❖Disable early-launch anti-malware protection
Allows drivers to initialize without being measured by the 
Anti-malware driver
❖Disable automatic restart on system failure
Prevents Windows
® from automatically restarting if an 
error causes it to fail. Choose this option only if 
Windows
® is stuck in a loop where it fails, attempts to 
restart, and fails again repeatedly.
Internet problems
My Internet connection is very slow.
Many factors contribute to the speed with which you can 
surf the Internet. They include: network speed, network 
conditions, time of day (when everyone else is surfing, your 
access can be slow) and popularity of the sites you are trying 
to access. If accessing a particular site is very slow, try later.
My browser cannot find the URL address I typed in.
Make sure you separated the domain names of the address 
with the forward slash (/). Check the spelling of each name 
and the syntax of the address carefully. A single incorrect 
letter or missed character will make it impossible for your 
browser to locate the site.
My browser cannot find a site I bookmarked.
The World Wide Web is constantly changing. A site you 
bookmarked yesterday may not be available today or its 
server may be down for temporary repair. Try again later. 
						

							129If Something Goes Wrong
Fixing a problem with Device Manager
The Windows® operating system can help you
If the operating system has started properly but you still have 
a problem using your computer, the online Help can assist 
you in troubleshooting the problem. Getting to the online 
Help will differ depending on which interface you are in:
❖
Start screen—Type Help and Support
As soon as you begin typing, the search feature 
automatically begins.
❖
Desktop—Press the F1 key
When the “Windows Help and Support” screen appears, do 
one or both of the following:
❖In the open search field type the topic you need help 
with and follow the on-screen instructions
❖Click or touch one of the options listed in the 
window and follow the instructions
You can connect to Support Online by going to Toshiba 
support at support.toshiba.com.
Fixing a problem with Device Manager
Device Manager provides a way to check and change the 
configuration of a device.
Changing the default settings using Device Manager can 
cause other conflicts that make one or more devices 
unusable. Device Manager is a configuration tool for 
advanced users who understand configuration 
parameters and the ramifications of changing them.
Checking device properties
Device Manager provides a way to view the properties of a 
device. Properties include the name of the manufacturer, the 
type of device, the drivers installed, and the system 
resources assigned to the device. 
To check a device’s properties:
1From the Start screen, type 
Device Manager.
NOTE 
						

							130If Something Goes Wrong
Power and the batteries
2Click or touch Device Manager.
The Device Manager screen appears.
3From the list of device(s), double-click or touch the 
device type.
4To view the device(s) installed, double-click or touch the 
device.
The operating system displays the device Properties 
dialog box, which provides an array of tabs. They may 
include:
❖The 
General tab, which provides basic information 
about the device.
❖The 
Resources tab, which lists resources assigned 
to the device. This tab does not appear if the device 
is not using resources.
❖The 
Driver tab, which displays the drivers being 
used by the device. This tab also provides options 
for updating the driver or rolling back the driver in 
case the new version is causing a problem.
The tabs that appear in the dialog box vary from one 
device to another. 
For more information about Device Manager, refer to 
Windows
® online Help.
Power and the batteries
The computer battery may not be accessible by the user.
Your computer receives its power through the AC adaptor 
and power cord/cable or from the system batteries. Power 
problems are interrelated. For example, a faulty AC adaptor 
or power cord/cable will neither power the computer nor 
recharge the batteries.
Here are some typical problems and how to solve them:
The AC power light does not come on when you 
plug in the AC adaptor and power cord/cable.
Make sure the AC adaptor and power cord/cable are firmly 
plugged into both the wall outlet and the computer.
If the AC power light still does not come on, check that the 
wall outlet is working properly by plugging in a lamp or other 
appliance.NOTE