47
TROUBLESHOOTING THE OPERATING
SYSTEM AFTER INFECTION
This section provides information about how to restore the operating system after it has been infected with viruses.
IN THIS SECTION
Recovering the operating system after infection ............................................................................................................. 47
Troubleshooting the operating system by using the Microsoft Windows Troubleshooting Wizard .................................. 47
About Rescue Disk .......................................................................................................................................................... 48
RECOVERING THE OPERATING SYSTEM AFTER INFECTION
If you suspect that the operating system of your computer has been corrupted or modified due to malware activity or a
system failure, use the Microsoft Windows Troubleshooting Wizard, which clears the system of any traces of malicious
objects. Kaspersky Lab recommends that you run the Wizard after the computer has been disinfected to make sure that
all threats and damage caused by infections have been fixed.
The Wizard checks whether there are any changes to the system, which can include access to the network being
blocked, file name extensions for known formats being changed, Control Panel being blocked, etc. There are different
reasons for these different kinds of damage. These reasons may include malware activity, incorrect system configuration,
system failures, or malfunctioning applications for system optimization.
After the review is complete, the Wizard analyzes the information to evaluate whether there is system damage that
requires immediate attention. Based on the review, the Wizard generates a list of actions that are necessary to eliminate
the damage. The Wizard groups these actions by category based on the severity of the problems detected.
TROUBLESHOOTING THE OPERATING SYSTEM BY USING
THE MICROSOFT WINDOWS TROUBLESHOOTING WIZARD
To run the Microsoft Windows Troubleshooting Wizard:
1. Open the main application window.
2. Click the Additional Tools button in the lower part of the main window to open the Tools window.
3. In the left part of the Tools window, click the Microsoft Windows Troubleshooting link to run the Microsoft
Windows Troubleshooting Wizard.
The Microsoft Windows Troubleshooting Wizard window opens.
The Wizard consists of a series of pages (steps), which you can navigate through by clicking the Back and Next buttons.
To close the Wizard after it finishes, click the Finish button. To stop the Wizard at any stage, click the Cancel button.
Let us review the steps of the Wizard in more detail.
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