How To Run A Boot Scan On Avast For Free For Windows PC [2023]

How To Run A Boot Scan On Avast Overview

Sometimes Windows 11/10 computers get infected and normal scanning methods cannot remove them. These viruses find a way to survive if they are tried to be removed in a standard way. This requires a boot scan so that viruses can be removed before the OS boots. In this post, we will explain How To Run A Boot Scan On Avast.

How to run a Boot-Time Scan in Avast Antivirus and Avast One | Avast

What is Scan on Boot or Scan on Boot?

Scan at boot is an advanced feature. where the system is scanned before the OS is loaded. It scans for known types of malware and removes threats before the operating system and other services load. Think of it as a small tool that scans files with the bare minimum needed to run the software, scan and remove the threat.

Most antivirus solutions offer this feature and scan at regular intervals, but can also be run manually.

How to run a Boot-Time Scan in Avast Antivirus and Avast One | Avast

How to use Avast Boot Scan to remove malware from PC

Avast, like all others, offers the ability to schedule and run a boot scan. Users can schedule a boot scan, customize how it works, and what actions to take depending on the degree of sensitivity. You can also set the on-boot scan to take automatic actions, but manually set the type of action to take when a threat is detected.

Launch Avast Antivirus and go to Protection > Virus Scan. Click on the gear or settings icon in the right corner of the screen. Select the Scan at boot tab and make sure the latest definitions are installed. Scroll a bit to find the option Perform automatic actions during this scan. Check the box next to it.

Then choose an action: Fix automatically (recommended): An attempt will be made to fix or repair the file first. If that doesn’t work, it moves the file to the Virus Chest or Quarantine. If this does not help, the file will be deleted. Move file to Virus Vault: Instead of restoring, you can move the file to quarantine. Files here cannot infect a PC. Delete File: Deletes a file from your PC.

Every time a download scan occurs, it performs these actions. If you don’t set this up, you will be prompted for all actions. Reboot your Windows PC and when the computer starts up, you will see the boot scan in progress screen. The scan usually takes a few minutes and at the end you will be given full details about the result, the actions taken, the number of infected files, etc. Post it; Windows will boot regularly.

What is advanced scan settings on boot?

The sensitivity sliders allow you to quickly set the antivirus level to detect a threat in a file. Check for PUPs that are known to perform unwanted activities. Scan archive files that Avast unpacks for scanning. Scan all hard drives or just the system drive, which can save time. Scan startup programs when you turn on your computer.

How to run Avast boot scan from command line?

Start Windows in Safe Mode using Command Prompt Then navigate to C:\Program Files\Avast Software\Avast from the commandType sched/A:* or sched.exe/A:* CD and press Enter. You can also run sched to see more options. Reboot your computer with shutdown /rPost, this boot scan process will run and the computer will boot normally after it is completed.

How to create and use Rescue Disk in Avast Antivirus?

If you want to scan your computer when the system is not running, you can use the Rescue Disk to scan the system offline. This has a significant advantage in detecting and removing malware because it will not counteract.

Launch Avast Antivirus and then go to Protection > Virus Scan, click on Rescue Disk on the right side of the screen. Enter an empty USB drive and then select Create USB on the Rescue Disk screen. After that, a small window will appear in which the rescue disk will be created. Now connect the USB drive to PCBoot in the BIOS or UEFI of the PC, and change the boot order to USB.

Restart your computer and the computer will use the USB drive to boot. display the “Start Scan” option where you can select all hard drives, selected folders or drives. Select “Fix automatically or manually”. After that, you will see the result of the scan.

What is the difference between download time vs full scan?
While a full scan is better than boot time, they both serve different purposes.

At the same time, a full scan is started in Windows and is very easy to scan and use. Boot scan is used when a full scan does not work because malware can interfere with the scan. Since the boot scan works when the OS is not loaded, it becomes easy to remove the virus.

I hope the post was easy to follow and you were able to use Avast Boot Scan to remove malware.

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