Download malwarebytes using a different system and copy the setup on a flash drive.
Use the link mentioned below to download malwarebytes:
Restart the system and tap F8 for advance boot options. Select Safe Mode and hit enter.
Connect the flash drive and install malwarebytes. Perform a complete scan and remove virus.
Restart the system.
If the system still does not work properly, create a new user profile using the link mentioned below:
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