Remove a computer virus in safe mode


















You may need to scroll down to find it. From here, your PC will restart and display the Choose an option screen. You can tell Windows 10 how you want it to boot. Select 4 or press F4 to start in Safe Mode. While there, press and hold Shift while clicking the Power icon and selecting Restart. Your computer will then restart to the Choose an option screen. From there, you can follow the same process as is outlined in the previous step.

If your computer is unusable, force it to shut down by holding down the power button for 10 seconds. After it shuts down, start it back up again by pressing the power button as you normally would. As soon as it shows the first signs of life — a startup chime, a logo on the screen — hold down the power button again for 10 seconds to shut your computer back down.

Repeat this on-off process one more time. When you turn your computer on for the third time, let it fully restart to enter WinRE the Windows Recovery Environment. From there, follow the same steps from the Choose an option screen to select Safe Mode, as outlined above in Option 1.

You may even get lucky and clear up your malware infection before needing to go any further. We suggest clearing all temporary files and emptying your Recycle Bin. After making your selections, click OK. Then click Delete Files to confirm. Avast's free antivirus software thoroughly checks your device for viruses, other types of malware, and a wide range of other risks to your online security and privacy. Now, all you need to do is let Avast Free Antivirus — or your chosen antivirus solution — do its job.

This will allow Avast Free Antivirus to scan and detect malware when your computer restarts. Type cmd and press Enter to open the Command Prompt interface. Then, press the Enter key. As your computer restarts, Avast Free Antivirus will perform a Boot-time Scan to thoroughly check for viruses and other malware. This may take several minutes to complete. Your cybersecurity tool will know how to tell if a file is a virus and how to remove a virus from a file without deleting it.

However, many viruses can and will cause direct harm to your software and files. You can attempt to recover them with a backup.

Having an up-to-date backup on either an external drive or a cloud server is one of the best protections you can give yourself against viruses — aside from an antivirus tool, of course. Head to the Control Panel via the Start menu in the lower-left corner of your screen. Click Restore my files to get your files back. You can restore the entire backup by selecting Browse for folders. Click Next to continue. Tell Windows where to put the restored files. If you want everything exactly as it was, choose In the original location , then click Restore.

If Windows detects that the original files are still on your computer, you can choose to replace them or leave them uncopied.

When the restoration is complete, click Finish to conclude the process. None of the antivirus programs will be able to run correctly in such conditions. Safe Mode allows you to ignore the changes that malware did to your PC. Hence, malware will not be able to affect the antivirus program job — in either direct way or through the changes in system settings.

Sure, such a system mode is not comfortable for everyday use — but who said that a special troubleshooting mode can be used for a regular job? Since the appearance of this ability in Windows 7, the access to this system mode and its appearance have changed two times. In that window, opt on the Safe Mode with suboption Minimal. Press Apply and OK to save the choice. Then, the system will offer you to reboot the computer — in order for the changes to take effect.

Apply this action — and you will be booted just to the needed system mode. Choose Safe Mode with Networking and proceed to malware removal. As I have mentioned, Safe Mode disables most of the Windows Services, leaving only ones that are crucial for system work.

The problem is that Windows Defender is disabled in Safe Mode, too. You cannot wake it up until you boot your PC into a normal Windows mode. To remove malware in that system mode, you need to have a separate anti-malware program installed. Click OK , then click Delete Files when prompted. Download and extract Autoruns. Autoruns is a Microsoft tool that shows you the various programs that started up with your current session. Click the Download Autoruns and Autorunsc link near the top of the page.

Double-click the downloaded ZIP folder. Click Extract all , then click Extract when prompted. Open the extracted folder, then double-click the Autoruns file to open Autoruns.

Use Autoruns to delete malicious files. Autoruns will give you a list of automatic startup processes and files that appeared when you started your computer. You can use this list to determine which of the services are actually viruses: Find a suspicious service in the Autoruns list. Look up the service online to confirm that it is a virus, making sure to note any removal instructions.

Delete the service and any files or folders related to it. Repeat this process until you've removed all of the suspicious services from the Autoruns menu. Restart Windows. You can now restart Windows safely to regular mode. Just click the Start menu, select the Power option, and choose Restart.

Change your browsers' home pages if necessary. A common virus strategy is to set your browser's home page to a malicious or ad-based website. You can change your browser's settings back to normal while in Safe Mode to prevent this from causing further harm.

In extreme cases, your computer's virus will corrupt the browser's files so that it can't be changed from within the browser settings. If so, you'll need to uninstall the browser in question and then reinstall it later. Run a Malwarebytes malware scan. If you're still having trouble, try using the free trial version of Malwarebytes' powerful antimalware application to see if it can find anything Microsoft Defender couldn't.

Once it's downloaded, double-click the downloaded file and follow the on-screen instructions to scan your PC. If Malwarebytes finds a virus or other harmful files, it will walk you through the removal process.

Reinstall Windows if necessary. If you can't get rid of the virus and you're unable to pay for a professional repair service to neutralize it, your best remaining option is to reinstall Windows and start over. You can back up your files to prevent data loss, but keep in mind that doing this will most likely back up the virus as well.

If you can afford it, take your computer into a professional repair service before this step. They may be able to remove the virus for you. Method 2. Force-quit persistent malware programs. If a program or group of programs is preventing you from restarting your Mac, do the following for the problematic program s : [3] X Research source Click Spotlight the magnifying glass in the top-right corner of the screen.

Type in activity monitor , then double-click Activity Monitor in the search results. Click the CPU tab. Select a program or service you want to force-quit. Click X in the top-left corner of the Activity Monitor window. Click Force Quit when prompted. Accept prompts to move malware to the Trash. If after a software update your Mac detects a known virus, it will prompt you to delete it. Click on Move to trash to move the malware to the trash and then empty the trash to remove it.

Restart your Mac into Safe Mode. Safe Mode prevents all but the most basic of Mac programs from starting, making it easier to find and delete viruses: [4] X Research source Click the Apple menu and select Restart….

Click Restart when prompted. Download and install Malwarebytes. The download should start automatically. Double-click the downloaded PKG file and follow the on-screen instructions to install. Open Malwarebytes. Click the Spotlight magnifying glass icon at the top-right, type malwarebytes , and click Malwarebytes in the Spotlight search results.

Click the Dashboard tab. It's on the left side of the Malwarebytes window. You'll find this in the middle of the Malwarebytes window. Doing so prompts Malwarebytes to begin scanning your Mac for viruses. This process can take over an hour to complete. Remove any discovered viruses. Once the scan completes, you can remove any viruses by clicking the Scan tab and then clicking Confirm in the middle of the page.

If Malwarebytes didn't find any viruses, you won't see the Confirm option here. Delete malicious apps if necessary. Some apps qualify as malicious without technically being viruses; common examples of this include toolbar apps and some third-party antivirus scanners Malwarebytes is exempt from this classification.

You can delete such an app from the Applications folder and your Mac by doing the following: Open Finder. Click Applications on the left side of the page. Find the app you want to remove. Drag the app icon to the Trash. Click and hold the Trash icon, then click Empty Trash when prompted. Remove any files associated with malicious apps. Find the folder for an app you deleted the app's name should be in the folder.



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