Toshiba C855-S5133 User Manual

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the state it was in prior to the installation, undoing any changes 
that the installation process introduced.

❖

Back up your critical data (see 

).

❖

Have your back up DVD(s) on hand in case you need any files 
from them. 

❖

Do not guess 

- 

follow directions carefully! It is often necessary 

to run an installation utility first 

- 

before connecting a new 

hardware item to the computer. If the device is connected first, 
it may be very difficult to complete the installation 
successfully. Always carefully follow the installation 
instructions that accompany the hardware or software.

❖

Restart the Windows

®

 operating system. Always restart the 

Windows

®

 operating system after each installation, even if the 

installation utility does not prompt you to do so. This will 
ensure that the installation is completed, and will clean up 
anything that the installation utility left behind.

❖

Do one installation at a time. If you have several new items to 
add to your computer system, install just one at a time, creating 
restore points immediately before each successive installation. 
This will make it much easier to determine the origin of any 
new problems. For best results, follow this sequence:

Back up critical data.

Create a restore point.

Install one item of hardware or software.

Restart the Windows

®

 operating system.

Use the new hardware or software for a while, noting any 
new problems. Make sure that your critical applications 
(email, business applications, etc.) are working correctly, 
and verify that important devices are still functioning.

For each additional hardware or software item, repeat 
these steps, starting at step 1 if any of your critical data has 
changed, or starting at step 2 if no critical data has 
changed.