ESET Online Scanner 3.7.9
This is a free one-time tool for checking Windows for malware. It performs deep diagnostics: downloads the latest signatures, checks boot sectors, the registry, and files, detects hidden rootkit threats, and offers safe removal. It is a convenient “second option” for those who want to quickly verify the cleanliness of their system without installing permanent antivirus software or when a complex infection is suspected.
Key features
One-time full system scan — online virus scanner for all partitions, useful when deep infection is suspectedQuick scan — on-demand scanner for vulnerable areas: temporary files, startup items, browser profiles.Custom scan — selection of folders and file types, flexible exclusions.Signature updates before scan — download databases before scanning for accurate detection.Malware detection and removal — detection and safe removal of malicious objects.Rootkit detection — check modules and hidden drivers.Boot sector scan — analysis of MBR and boot sectors.Quarantine tool — quarantining suspicious files with the option to restore them.Scan of compressed archives — scanning archives without unpacking them.Detection of PUA — detection of potentially unwanted applications and adware.Low system impact — minimal load during scanning.Report and log export — saving scan results.Restart & rescan support — restart to remove blocked files.Removable media scan — scanning USB and external drives.Behavioral analysis — searching for new patterns based on behavior.Cloud-assisted lookup — clarifying the reputation of questionable objects.Exclusions and whitelist — adding trusted files and folders.Heuristic engine — advanced heuristic analysis for zero-day threats.Safe Mode scanning — support for scanning in safe mode for complex infections.Detailed threat classification — threat priorities and categories in the report.Minimal false positives — fine-tuning detection to reduce false positives.Lightweight installer — compact installer without heavy components.User-friendly GUI — intuitive interface for quick operation and configuration.Option to delete application data after use — deletion of temporary scanner files upon completion.Forensic details in logs — saving of file hashes and timestamps.System restore integration — recommendations for creating restore points before cleaning.Multi-language support — interface in major languages.Low bandwidth updates — economical signature updates for slow connections.Support for user profiles — separate settings for different users.Privacy-friendly mode — minimal telemetry and local data processing.
Free Download — ESET Online Scanner 3.7.9
What’s new in the latest versions Version 3.7.9 (latest)
Accelerated scanning of archives and large files.
Improved boot sector scan and startup check.
Updated interface with more visual progress display.
Improved integration with the quarantine tool, making it easier to restore files.
Increased accuracy in detecting potentially unwanted applications and adware.
Improved compatibility with Windows 11 and updated system libraries.
Reduced CPU load during malware removal.
Version 3.7.0
The restart & rescan option has been added to completely remove blocked threats.
The use of the heuristic engine has been expanded to search for zero-day malware.
New interface languages have been added.
Version 3.6.0
Custom scan performance has been optimized.
Log and report processing has been improved.
Removable media scan.
Version 3.5.0
A new cloud-assisted lookup module has been introduced to check questionable objects.
The installer has been redesigned to be more compact and faster.
Pro tips
Disable real-time protection for other products before scanning to avoid conflicts.
To speed up the process, use Quick scan , then run Custom scan on suspicious directories.
Enable USB drive scanning (Removable media scan) if you suspect portable threats.
For complex infections , boot into Safe Mode and run Safe Mode scanning.
Save the scan log and use Detailed threat classification for analysis.
For regular prevention, set up a schedule and automatic signature updates .
Comparison with Avast Premium Security and McAfee WebAdvisor
Type : ESET — on-demand scanner for spot checks. Avast WebAdvisor — browser extension.Coverage : ESET focuses on deep detection and malware removal. Avast covers a wide range of additional services. WebAdvisor focuses on web surfing security.Load : ESET puts minimal load on the system when scanning. Avast runs continuously and consumes resources. WebAdvisor runs in the browser and has almost no impact on the OS.Ease of use : ESET is easy for one-off checks. Avast is powerful but more difficult to configure. WebAdvisor
Recommendation : ESET is an excellent on-demand scanner when you suspect an infection. Avast is for constant comprehensive protection. WebAdvisor is for safe link navigation and downloads.
System requirements
OS : Windows 7 – 11.RAM : minimum 500 MB.Disk space : ~350–400 MB of free space.Internet : required to update signatures before scanning.
Outcome ESET Online Scanner is a small but versatile online antivirus that meets the needs of users who may not be interested in installing a large amount of antivirus software but would like to scan their systems at once to detect viruses, Trojans, spyware, and rootkits. Thanks to constant updates and version 3.7.9, it is worth noting that the tool has a more powerful engine, more accurate detection of potentially unwanted applications, more quarantine tool capabilities, and a very limited system load.
Unlike traditional comprehensive programs such as Avast Premium Security or browser extensions such as McAfee WebAdvisor, ESET Online Scanner is a basic and reliable on-demand scanner that is effective and fast. It is the most suitable tool if you need to scan your computer urgently and remove malicious objects without overloading it.
Frequently Asked Questions about ESET Online Scanner
1. Is the software free or does it require a subscription?
The software is completely free and does not require a subscription or one-time payment. You can use it whenever you need a quick scan.
2. Can the software remove detected malware automatically?
Yes, it can remove malware or move it to quarantine. Just run a full scan and select the option to clean or quarantine threats.
3. How does the software compare to Kaspersky Virus Removal Tool?
The software is lighter and faster to run, while Kaspersky offers deeper but heavier cleaning. Both are free, but ESET is more user-friendly.
4. Is it more effective than Windows Defender Offline Scan?
Yes, the software has a stronger detection rate for spyware and potentially unwanted applications. Windows Defender is good, but less flexible in custom scans.
