![]() On the other end of the scale were McAfee Total Protection and Trend Micro Maximum Security, which had background impacts in the single digits, yet full-scan slowdowns of 96% and 57%, respectively. Two of them, Bitdefender Total Security and Kaspersky Total Security, had relatively high post-installation background system impacts, of 19% and 12%, respectively, yet traded that for fairly light impacts - 33% and 26% - during system scans. It's hard to determine a second place among the paid programs. But Avast's full-scan slowdown was the heaviest at 53%, while AVG's was less than half that at 25%. Likewise, Avast Free Antivirus (4.4%) had less of a background impact than its sibling AVG AntiVirus Free, (5.2%). You wouldn't notice ESET's 12% hit unless you were intensively using the processor already. ![]() You'd probably notice that full-scan slowdown even if you were just checking email. But McAfee's full scan hit our test laptop like a ton of bricks, slowing it down by 96%. For example, McAfee Total Protection had a relatively light background impact, slowing down the Lenovo laptop by only 9% after installation. Most other programs were less consistent in their rankings. Kaspersky Security Cloud Free's full-scan system impact was a barely noticeable 6% its quick-scan impact was a barely measurable 1%. It actually sped up the system a bit after installation, indicating that it may be more efficient than the built-in Microsoft Defender Antivirus, which runs by default but deactivates itself if a third-party antivirus program is installed. Kaspersky Security Cloud Free was the undisputed winner in the free categories, beating all rivals in passive, full-scan and quick-scan impacts. Kaspersky did have the second-lightest full-scan impact in the bunch, however. The lightest quick-scan impact among paid programs was held by Kaspersky Total Security at 22%, a percentage that was nearly twice as much as ESET's full-scan impact. That may be because ESET doesn't have a quick-scan option. Both Kaspersky and Webroot deliver reliable security solutions, but Kaspersky stands out for its advanced malware detection capabilities and comprehensive features, while Webroot excels in its lightweight performance and cloud-based approach to protection.Among paid antivirus programs, ESET was not the fastest in all three categories that we measured: passive system impact, full-scan system impact and quick-scan system impact. Webroot's focus on cloud-based protection allows for faster scans and minimal impact on system resources. It offers real-time scanning, web protection, and a powerful threat intelligence network that constantly updates its threat database. Webroot, on the other hand, takes a lightweight and cloud-based approach to antivirus protection. Kaspersky also offers additional features like parental controls, encrypted storage, and a password manager. It is recognized for its strong track record in independent tests and its ability to effectively identify and block threats. Kaspersky, renowned for its advanced malware detection technologies, provides real-time scanning, web protection, email protection, firewall, and secure online transactions. ![]() ![]() Kaspersky and Webroot are two well-known antivirus software providers that offer reliable protection against malware and online threats.
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