Avast Antivirus offers a variety of scans to guard your PC from malware. You may as well create your individual scan and specify the parameters. Confer with the sections on this article for particulars in regards to the following Virus Scans:

  • Sensible Scan: A complete scan that detects malware, out-of-date software program, browser add-ons with poor reputations, community threats, and efficiency points.
  • Full Virus Scan: A predefined, in-depth scan of your system that checks your storage drives and reminiscence for malware (together with rootkits).
  • Focused Scan: Scans the folders you choose whenever you provoke the scan.
  • Boot-Time Scan: Scans your PC through the subsequent system startup earlier than any malware is launched. Working a Boot-Time Scan throughout startup improves the probabilities of detecting and eradicating malware earlier than it may well assault your PC.
  • Customized scans: Scan your PC in accordance with the parameters that you just specified in your scan.
  • Explorer Scan: Scans particular information or folders straight out of your desktop through File Explorer.

Run a scan

  1. Open Avast Antivirus and go to Safety ▸ Virus Scans.
  2. Run your most well-liked scan:
    • Sensible Scan: Click on the Run Sensible Scan button.
    • Full Virus Scan: Click on the Full Virus Scan tile.
    • Focused Scan: Click on the Focused Scan tile, then choose the file or folder you need to scan, and click on OK.
    • Boot-Time Scan: Click on the Boot-Time Scan tile, then click on Run On Subsequent PC Reboot.
    • Customized scans: Click on the Customized scans tile, then click on Scan Now on the panel for the scan you need to run.

To run Explorer Scan, right-click a file or folder in your desktop or in File Explorer, then choose Scan chosen objects for viruses within the menu that seems.

Create a customized scan

  1. Click on the Customized scans tile.
  2. Click on Create A New Scan.
  3. Outline the scan parameters and settings:
    • Scan identify: Sort a reputation in your scan into the textual content field.
    • Scan sort: Click on the drop-down menu and choose the kind of scan you need.
    • Frequency: Click on the drop-down menu and outline how usually your scan runs.

    Superior settings

    • Sensitivity (Medium by default): Click on and drag the slider to regulate the scan sensitivity. Greater sensitivity will increase safety and potential for false optimistic malware detection. Decrease sensitivity reduces the potential for false optimistic detections, however could scale back the effectiveness of the scan.
    • Scan for PUPs (doubtlessly undesirable applications): Tick the field to allow Avast to scan for applications which can be stealthily downloaded with different applications and sometimes carry out undesirable exercise.
    • Comply with hyperlinks throughout scan: Tick the field to allow Avast to scan different information utilized by the information being scanned for doubtlessly dangerous content material.
    • Check entire information: Tick the field to allow Avast to scan whole information somewhat than solely the elements sometimes affected by malicious code.
    • Scan precedence: Use the drop-down menu to set your scan precedence (medium precedence by default).

    Scan areas

    • All Harddisks: Choose to allow Avast to scan all arduous drives in your PC.
    • System drive: Choose to incorporate information that’s saved on bodily gadgets corresponding to arduous drives and USB sticks.
    • All detachable media: Tick to allow Avast to scan purposes that launch routinely whenever you insert a USB or different detachable system into your PC. Scanning detachable media could take a very long time attributable to pace limitations.
    • Rootkits: Tick to allow Avast to scan for hidden threats within the system.
    • UEFI BIOS: Tick to allow Avast to scan for hidden threats within the UEFI BIOS boot-up course of.
    • CD-ROM & DVD drives: Tick to allow Avast to scan CD and DVD drives for malicious content material.
    • Startup applications and modules loaded in reminiscence: Tick to allow Avast to scan purposes and processes that launch after system startup or run within the background.

    Packers and Archives

    • Scan solely widespread installers: Choose to scan solely generally used file varieties corresponding to .zip, .rar, and different executable or installer archives.
    • Scan all archives: Choose to scan all archive information, which considerably will increase the scan length.
    • Do not scan archives: Choose to exclude all archive information from the scan.

    File Sorts

    • Content material primarily based varieties (sluggish): Choose to scan information which can be sometimes most weak to malware assaults.
    • Title extension primarily based varieties (quick): Choose to solely scan information with dangerous extensions, corresponding to .exe, .com, and .bat.
    • Scan all information (very sluggish): Choose to scan all information in your PC for malware.

    Automated actions

    • Carry out automated actions throughout this scan: Tick this feature to allow it, then outline the automated motion Avast will carry out when an contaminated file is discovered.
      • Repair routinely: When an contaminated file is detected, Avast will attempt to repair the file. If restore shouldn’t be potential, the file is moved to Quarantine. If this fails, the file is deleted.
      • Transfer file to Quarantine: When an contaminated file is detected, Avast strikes the file to Quarantine.
      • Delete file: When an contaminated file is detected, Avast routinely deletes the file.
    • Shut down laptop after scan finishes: Tick to allow Avast to close down your PC after the scan completes.
    • Generate report file: Tick to allow Avast to create and retailer a report file routinely after the scan completes.
  4. Click on Save to finish your customized scan setup.

To edit your customized scan settings, go to Safety ▸ Virus Scans ▸ Customized scans, then hover your cursor over the scan identify and click on Extra (three dots) ▸ Settings.

Course of scan outcomes

After a scan completes, Avast shows all discovered points. You possibly can resolve the problems straight on the outcomes display screen, or configure every Virus Scan to resolve points routinely upon detection.

Some detections could require a separate paid subscription to resolve.

Sensible Scan

To be taught extra about resolving discovered points after Sensible Scan completes, check with the next article:

Different Virus Scans

To outline how every scan routinely reacts to a discovered situation, comply with the steps beneath:

  1. Open Avast Antivirus and go to Menu ▸ Settings.
  2. Choose Safety ▸ Virus Scans.
  3. Click on the tab in your chosen scan.
  4. Scroll down, then tick the field subsequent to Carry out automated actions throughout this scan. Then choose which motion you need Avast to carry out when a problem is discovered:

    • Repair routinely: When an contaminated file is detected, Avast will attempt to repair the file. If restore shouldn’t be potential, the file is moved to Quarantine. If this fails, the file is deleted.
    • Transfer file to Quarantine: When an contaminated file is detected, Avast strikes the file to Quarantine.
    • Delete file: When an contaminated file is detected, Avast routinely deletes the file.

If you would like Avast to do nothing when an contaminated file is discovered, untick the field subsequent to Carry out automated actions throughout this scan (not advisable). To handle unresolved scan detections at any time, go to Safety ▸ Virus Scans ▸ Scan historical past.

Particular circumstances

For incomplete scans, an error message indicating the rationale the scan was unable to finish is seen on the scanning display screen. Though there are numerous totally different causes a scan could also be unable to finish, a few of the most typical causes are:

  • Archive is password protected: Signifies that the file is password protected. Some applications use password protected archives to retailer their information even in the event you didn’t set the password. Relying in your scan settings, solely the “wrapper” file is scanned whereas the archive content material shouldn’t be.
  • Archive is corrupted: Signifies that the file could also be corrupt as a result of it was solely partially downloaded or saved to your harddisk, or that it’s a particular sort of archive.
  • The method can’t entry the file due to one other course of: Signifies that one other course of or program was accessing the file through the scan.
  • The file is a decompression bomb: Signifies that the file was too giant to be decompressed for malware evaluation. Decompression of enormous information generates huge quantities of information which might trigger your system to be unstable or trigger it to crash.

Recordsdata which can be saved in archives can’t hurt your system except they’re decompressed.

Modify scan settings

Though customizable settings can be found for some Virus Scans, we advocate you solely modify settings for Customized Scans. To configure scan settings:

  1. Go to Safety ▸ Virus Scans.
  2. Click on Settings (the gear icon) within the top-right nook of the Virus Scans display screen.
  3. Choose the tab in your chosen scan.
  4. Configure the related settings.

For extra details about Virus Scan settings, check with the next article:

Create and use Rescue Disk

Should you suspect your PC is contaminated with malware and all different Virus Scans (together with the Boot-Time scan) have been unable to resolve the problem, you need to use Rescue Disk. Rescue Disk allows you to scan your PC when your system shouldn’t be working. This technique considerably will increase your probabilities of detecting and eradicating malware as a result of the malware is detected earlier than it is ready to counteract.

For extra details about Rescue Disk, check with the next article:

Assessment scan historical past

To view particulars of your earlier scans:

  1. Go to Safety ▸ Virus Scans.
  2. Click on Scan historical past.
  3. Hover your cursor over a scan panel, then click on the down arrow to see the scan particulars.
  • Avast Omni 21.x
  • Avast Premium Safety 21.x
  • Avast Free Antivirus 21.x
  • Microsoft Home windows 10 Residence / Professional / Enterprise / Training – 32 / 64-bit
  • Microsoft Home windows 8.1 / Professional / Enterprise – 32 / 64-bit
  • Microsoft Home windows 8 / Professional / Enterprise – 32 / 64-bit
  • Microsoft Home windows 7 Residence Fundamental / Residence Premium / Skilled / Enterprise / Final – Service Pack 1 with Handy Rollup Replace, 32 / 64-bit
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