The way to scan your PC for viruses

Avast Antivirus gives a variety of scans to guard your PC from malware. You can even create your personal scan with parameters specified by you. Seek advice from the next sections for particulars about Antivirus scans:


Choose a scan kind

Along with Antivirus shields, Avast Antivirus consists of the next scans:

  • Good Scan: a complete scan that detects malware, out-of-date software program, browser add-ons with poor reputations, community threats, efficiency points, and passwords which might be weak, duplicated, or compromised.
  • Full Virus Scan: a predefined, in-depth scan of your system that checks your storage drives and reminiscence for malware (together with rootkits).
  • Fast scan: scans the primary drive of your PC the place system recordsdata are saved, auto-start applications, and all recognized forms of rootkits. To allow the scan to run shortly, the scan solely analyzes probably dangerous file sorts.
  • USB/DVD Scan: scans any detachable storage units which might be at the moment linked to your PC. For instance, exterior exhausting drives, USB flash drives, CDs, and DVDs.
  • Folder 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. Scanning throughout startup improves the probabilities of detecting and eradicating malware earlier than it might counteract.

For details about working and scheduling a boot-time scan, learn the next article:


Run a scan

To run a scan, comply with these steps:

  1. Open the Avast person interface and go to Safety ▸ Antivirus.

  1. Choose your scan kind:
  • Click on Run Good Scan or Run Full Virus Scan from the Antivirus display screen.


  • Click on Different scans, then click on the tile of the scan you need to run.


A progress display screen is seen whereas your PC is scanned. When the scan finishes, you possibly can view scan outcomes.

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Schedule a scan

You’ll be able to schedule a particular scan to run at a time handy for you. To schedule a scan, comply with these steps:

  1. Open the Avast person interface, and go to Safety ▸ Antivirus.


  1. Click on the clock icon on the related scan tile. You’ll be able to schedule a Full Virus Scan, or click on Different scans to schedule extra scan sorts.


  1. Tick Schedule this scan and use the drop-down menu to specify if you need the scan to run on only one event (As soon as) or periodically (Day by day, Weekly, or Month-to-month).


  1. Handle your preferences for the next settings:
  • Don’t begin the scan if working on batteries: tick to disregard schedule settings in case your PC just isn’t linked to an influence supply.
  • Pause the scan if batteries mode begins: tick to pause the scan in case your PC is faraway from its energy supply through the scan.
  • Shut down the system after the scan finishes: tick to robotically flip off your PC after the scan.
  1. Set the time that you really want the scan to run in 24-hour format (for instance, as an alternative of 3pm use 15:00), and choose a day from the drop-down menu.


  1. Click on OK to save lots of your schedule settings.

Boot-time scan can’t be scheduled to run frequently. To schedule Boot-time scan to run on the subsequent system restart, choose the Boot-time scan tile and click on Run on subsequent PC reboot. For extra details about working and scheduling a boot-time scan, learn the next article:


Create a customized scan

To create a customized scan, comply with these steps:

  1. Open the Avast person interface and go to Safety ▸ Antivirus.


  1. Click on the Different scans tile, then click on Create a customized scan.
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  1. Kind a reputation and outline in your scan, then specify which areas and recordsdata to scan.


  1. Click on OK.

You should use the tabs on the left panel to configure superior parameters in your scan. For extra info, learn the next article:

Your new scan seems as a tile subsequent to Create a customized scan. Click on the trash bin icon to delete your scan, the clock icon to entry schedule settings, or the gear icon to entry scan settings.


Course of scan outcomes

After working a scan, details about the detections and choices to resolve them seem within the outcomes.

Good Scan

Good Scan shows particulars of every concern and provides you the choice to repair detected points instantly by clicking Resolve, or later by clicking Skip.

Antivirus scans

If Avast Antivirus scans detect any points, you possibly can choose what motion you need Avast to carry out by utilizing the drop-down menu. The next actions can be found:

  • Auto: makes an attempt to restore the file. If unsuccessful, strikes the file to the Virus Chest or deletes the file if neither motion is profitable.
  • Delete: completely removes the file out of your PC.
  • Restore: removes malicious code if the file is just partially contaminated. This motion just isn’t potential if the complete code is malware.
  • Chest: sends the file to the Virus Chest the place the file can not hurt your system (really helpful).
  • Nothing: makes no modifications to the contents or location of the file (not really helpful).

If you don’t want Avast to carry out any actions now, click on Again to exit the display screen. You’ll be able to handle unresolved scan detections at any time in Safety ▸ Antivirus ▸ Scan historical past.

Particular circumstances

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For incomplete scans, an error message indicating the rationale the scan was unable to finish is seen within the Standing column. Though there are lots of 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 knowledge even should you didn’t set the password. Relying in your scan settings, solely the “wrapper” file is scanned whereas the archive content material just isn’t.
  • 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 kind of archive.
  • The method can not 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 massive to be decompressed for malware evaluation. Decompression of enormous recordsdata generates huge quantities of information which might trigger your system to be unstable or trigger it to crash.

Recordsdata which might be saved in archives can not hurt your system until they’re decompressed.

Alter scan settings

Though customizable settings can be found for some Antivirus scans, we advocate you solely modify settings for Customized scans. To configure scan settings, comply with these steps:

  1. Open the Avast person interface and go to Safety ▸ Antivirus.


  1. Click on the gear icon on the related scan tile. You’ll be able to regulate settings for Full Virus Scan, or click on Different scans to entry extra scan sorts.


  1. Use the tabs on the left to view and customise parameters for the chosen scan.



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