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Need help to Reinstall windows defender as it was deleted by some virus


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Hello @sanapprajwal and :welcome::

While you are waiting for the next qualified/approved malware removal expert helper to weigh in on your topic, and even though you may have run the following Malwarebytes utility, or its subsets, please carefully follow these instructions:

  1. Download the Malwarebytes Support Tool.
  2. In your Downloads folder, open the mb-support-x.x.x.xxx.exe file.
  3. In the User Account Control (UAC) pop-up window, click Yes to continue the installation.
  4. Run the MBST Support Tool.
  5. In the left navigation pane of the Malwarebytes Support Tool, click Advanced.
  6. In the Advanced Options, click only Gather Logs. A status diagram displays the tool is Getting logs from your computer.
  7. A zip file named mbst-grab-results.zip will be saved to the Public desktop, please attach that file in your next reply to this topic. Please do NOT copy and paste.

For the short time between when you post the diagnostic logs, and when your helper weighs in, please take no further self-directed remedial actions that will invalidate the diagnostic logs you will have sent.

Thank you.

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  • Root Admin
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Posted (edited)

Hello @sanapprajwal

Your system is heavily infected. It would probably be best to backup your personal data to an external USB drive. Then do a CLEAN install of Windows

 

Greg Carmack - MVP 2010-2020 -Clean Install Windows 10
https://answers.microsoft.com/en-us/windows/forum/windows_10-windows_install/clean-install-windows-10/1c426bdf-79b1-4d42-be93-17378d93e587

How to Create a Local Account While Setting Up Windows 10
https://www.howtogeek.com/442792/how-to-create-a-local-account-while-setting-up-windows-10/

 

Windows 10 is approaching End of Life in 2025 so you might want to consider installing Windows 11

 

Perform clean install of Windows 11 in six different ways
https://pureinfotech.com/clean-install-windows-11/

How to Perform a Clean Install Windows 11
https://www.groovypost.com/howto/clean-install-windows-11/

 

 

We can attempt to try to repair the system if you like though, please let us know what you'd like to do.

 

Thank you

 

Edited by AdvancedSetup
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  • Root Admin

Great, glad to hear. If you'd like us to check on it, please post a new set of logs. @sanapprajwal

 

To begin, please do the following so that we may take a closer look at your installation for troubleshooting:

NOTE: The tools and the information obtained are safe and not harmful to your privacy or your computer, please allow the programs to run if blocked by your system.

  • Download the Malwarebytes Support Tool
  • In your Downloads folder, open the mb-support-x.x.x.xxx.exe file
  • In the User Account Control pop-up window, click Yes to continue the installation
  • Run the MBST Support Tool
  • In the left navigation pane of the Malwarebytes Support Tool, click Advanced
  • In the Advanced Options, click Gather Logs. A status diagram displays the tool is Getting logs from your machine
  • A zip file named mbst-grab-results.zip will be saved to the Public desktop, please upload that file on your next reply

Thank you

 

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