Users often reflected in the use of Kaspersky virus killing when the excessive utilization of system resources, I hope the author can help solve. After the author research, the following tells you how to use the easiest way to solve.
Scanning operation is the routine of anti-virus software protection system, in order to speed up the scanning speed, you can "tell" Kaspersky do not have to repeat the scan has been sex checked old files.
Open the Settings window, click the Scan tab, and click the Custom button in the right column. In the pop-up window select "Scanner and document (by content)", and check "scan only new and changed files," and then in the Compound Files group, click the All text link in the two check box to make it new only, and then click OK to return to the Settings window.
Of course, for "critical zones" that are often attacked. The author recommends setting the installation level to "high".