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Our devices carry most important and personal files and, become an important factor to protect PC and data with a good antivirus program. Best lightweight Antivirus software should be able to protect PC real time and remove any malware on the system with minimal resource use.

The best antivirus means, it should update latest virus definitions regularly, able to protect system real-time and not take much system resources. Amidst all the software’s available, it is indeed quite difficult to come up with the best antivirus software right for the PC.

With a lightweight antivirus, your hard disk is safe from running out of space from all those bulky antivirus software. Memory consumption is less and job done is more with less CPU Power. With double plus points, your PC is safe and will not overload the memory.

Related: 10 Best Android Antivirus & Mobile Security Apps with Antitheft Protection

We are bound to select best lightweight antivirus software which stands the light, best and is able to efficiently do the job of blocking, detecting the virus or malware and detecting the virus or malware and fixing in case of a virus or malware attack. Each antivirus software varies in different terms such as memory usage, scanning time, weight etc. Those who are not happy with just Antivirus protection, there are All In One Security Software for Mac in 2017 is available for Mac users.

However, we show a slight hesitation to “buy” security software. We are bound to go for the cheapest one in town. Each of these has undergone a set of malware tests to find the best and light weight anti-virus.

Avast (MAC | Windows | Android | iOS)

(Ideal: 9,706 KB) | Download Avast

Avast is the number one platform for antivirus and antimalware must have on your Mac or Windows. Avast helps 230 million people across the globe to protect their files. The download is done in 3 easy steps: Run, Confirm and Follow the instructions. Avast also provides various other products for security scanning and network security. This is on the top of the list for antivirus software.

Avast With only 10.1 MB for MAC devices and 4.83 MB on Windows; this software is the most sought software by almost everyone. This is the first name recommended by any professional seeking free and immediate software.

ICSA Certified Firewall is also a highlight of Avast. In the case of Linux, an initial registration gives you a free trial of 30 days for non–commercial usage. It has an ideal working set of 9,706 KB and resets every 10 seconds for a scan working set.

Panda Cloud Antivirus (MAC | Windows | Linux | iOS)

(Ideal: 9,706 KB | Scan:76, 498 KB) | Download Panda

Modestly they have put out that they are responsible for detecting more than 250 million threats. With only 2.15 MB, this antivirus is a definite recommendation. This is a light antivirus based on cloud computing, but powerful enough to protect your PC.

Panda CloudWith built-in parental control and location service, this malware software takes care of your PC without exploding your memory usage. It has an ideal working set of 31, 714 KB and a scan working set of 76, 498 KB.

Microsoft Security Essentials (Windows)

(Ideal:70,484 KB | Scan:79,103 KB) | Download MS Essentials

Microsoft Security Essentials products are protection against malware in Windows 7 and Windows Vista. They help to guard against viruses and protect files from attacks. It presents a real-time protection for your PCs and is free (Trial). Microsoft Security Essentials is not as lightweight antivirus, but this malware protection software is Windows built-in, has a neat detection ratio and uses less CPU and RAM.

Microsoft Sec EssentialsWindows Security Essentials has recently failed certain experiments of the malware tests. An additional feature of status indicator is present in this software, to show whether the PC is protected or not. It uses a memory of 4.28 MB during initial installation. Security essentials from Microsoft make uses of 70,484 KB for Idle Working Set and 79,103 KB for Scan working set.

Webroot (MAC | Windows)

(Ideal:3,823 KB | Scan:9,949 KB) | Download Webroot

This wonderful lightweight antivirus ensures that none of your files are left detached and is protected from further attacks. Does not require any signature updates and needs only a small space on the disk compared to the others. Log into this wondrous site, to get a taste of trial version of the varied products.

WebrootThis antivirus software installation takes place within the blink of an eye and scans quicker than the blink. It is a mastermind and a model for other protection software. Webroot takes up an initial memory 3MB which is a rough estimate. It makes use of 3,823 KB for Idle Working Set and 9,949 KB for Scan Working Set.

Immunet (MAC | Windows | Linux)

(Ideal:40,413 KB | Scan:63,475 KB) | Download Immunet

A cloud base, free and a community driven anti-malware software, Immunet is an application that makes use of ClamAV and has its own engine too. The highlight of Immunet is that the signature file attacked by the virus is stored in a cloud and not on the PCs, so update downloads do not play the role.

Immunet

Immunet has an Idle Working Set of 40,413 KB and Scan Working Set of 63,475 KB. Initial installation memory is about 557 KB.

F-Secure (MAC | Windows | iOS)

(Ideal:62,042 KB | Scan:92,386 KB) | Download F-Secure

Originating from Finland, this antimalware software is the first antivirus software to establish a presence on the World Wide Web. It is known formerly for tracking the internet mobile security threats.

FsecureThis antivirus software has a neat image when considered on the basis of malware blocking test. Fast scan, quick erasing of a virus are some of the rainbow features it has. F_Secure is supported on both Windows and MAC OS. Idle Working Set is 62,042 KB and Scan Working Set is 92,386 KB.

ESET  (MAC | Windows)

(Ideal:93,616 KB | Scan:103,244 KB) | Download ESET

ESet is global level malware protection software that is known for its products for nearly two decades. Their highlights are firewall and antivirus products and are very well known for ESET NOD32.

esetAlthough certain reports give rash comments about easily hacking into this software, the range of products ESET delivers is of quality and can be trusted. Idle Working Set is 93,616 KB while Scan Working Set is 103,244 KB.

Comodo Cleaning Essentials (MAC | Windows)

(Ideal:39,664 KB | Scan:105,317 KB) | Download Comodo Cleaning Essentials

“Creating Trust Online”. This anti-malware software is giving out free products for Windows. MAC as well as Linux. It also gives various other products that have highlights of encryption of transmitted data over the internet and online storage for backup.

ComodoThis lightweight antivirus roughly takes 24 MB to install initially. Idle Working Set is 39,664 KB and Scan Working Set is 105,317 KB.

Related: 7 Online Virus and Malware Scanners for Mac, Windows, Files & Websites

These are some of the few best lightweight antivirus software that you could try out. Many of them have a 5-star rating by rated professionals make sure the best virus protection, all comes down to protecting PC after all.

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