Concerning to:
Kaspersky Anti-Virus 7.0 MP1 (build 7.0.1.321)
Kaspersky Internet Security 7.0 MP1 (build 7.0.1.321)


If you have upgraded Kaspersky Anti-Virus\ Kaspersky Internet Security version 7.0.0.125 to version 7.0.1.321 or you installed version 7.0.1.321 “from the scratch”, then after the installation the following problems might occur:

1. your computer is slow with Kaspersky Anti-Virus product and Internet Explorer started

2. Microsoft Office 2007 applications start slowly

Kaspersky Lab apologizes for the inconveniences. Kaspersky Lab’s experts are trying to solve the above described problems. You can roll back to previous version. In order do the following:
download product distributive from our official site:
Kaspersky Anti-Virus 7.0.0.125 - kav7.0.0.125en.exe
Kaspersky Internet Security 7.0.0.125 - kis7.0.0.125en.exe
remove the current version via Control Panel. If normal removing fails, please use the remove utility
reboot your computer
run the downloaded file kav7.0.0.125en.exe or kis7.0.0.125en.exe
install version 7.0.0.125 on your computer
reboot your computer

Read full here:

[Only registered and activated users can see links]

Not facing that problem..only in scan state...because use 3/4 of proccesor speed
Move To proper section

Disable in protection "web antivirus" as a temp measure same problem in 7.0.1.325 for me