Once Kaspersky Anti-Virus 2011 is installed there may appear situations when the OS functions unstable. For example, at computer or task start there appear error messages informing about errors in the OS work. In this case most probably there the program conflicts with any software installed on your computer or with drivers of your computer. If an error occurs during a task performance in this case you should get trace files of the application components: 

• open the main application window 
• click the Support link in the down left part of the window 
• click Support tools in the down left part of the Support window
• in the Traces section select the trace level: 
• critical (100) 
• high (200) 
• diagnostic (300) 
• important (400) 
• normal (500) 
• low (600) 

 Technical Support expert should advise you which trace level to configure. IF the trace level has not been specified, it is recommended to set the level to Normal (500). 

• click the Enable button 
• reproduce the problem

If a component (or its subsystem) that caused the failure is identified, then before tracing it is recommended to disable all components of Kaspersky Anti-Virus 2011 except the problem one (for example, if the Web Ani-Virus component works incorretly, disable all components except Web Anti-Virus).

• click the Disable button
• close all windows.

Trace files will be created with the .log extension. Trace files have the following file name format:

[Product name]_[Product version]_[Creation date]_[Creation time]_[Random symbols]_[Trace type].

For example:

• KAV.11.0.1.400b_09.24_16.21_596.SRV.log.
• KAV.11.0.1.400b_09.24_16.21_596.GUI.log.

In some cases, Kaspersky Lab Technical Support specialists may ask to generate the *HST.log file (for example, KAV.11.0.1.400b_09.24_16.21_596.HST.log). Instructions on how to generate the file will be provided by Kaspersky Lab Technical Support specialists.

You can find the created trace files in the following folder:

• If your computer runs under OS Windows Vista/7:
1. Click on the Start button in the bottom left hand corner of the screen.
2. In the search line enter %ALLUSERSPROFILE%\Kaspersky Lab\  and press on the Enter key.
3. The Kaspersky Lab window with trace files opens.
• If your computer runs under OS Windows XP:
1. Click on the Start button in the bottom left hand corner of the screen.
2. Select Run from the open menu.
3. In the Run field enter %ALLUSERSPROFILE%\Application Data\Kaspersky Lab\  and click on the OK button.
4. The Kaspersky Lab window with trace files opens.