Recently, my computer was infected by a persistent rootkit. I believe the source of it was from my friend's computer since my thumbdrive was infected when i scanned it. Is there anyway to remove it. Is it possible to remove it without reformatting? ''Persistent rootkits become active each time your computer boots. Persistent rootkits install in the Windows Registry or as part of the Windows file system. In general, this type of rootkit is associated with malware that initiates a specific action, like sending your personal data to a remote location and continues to perform the operation until removed from your system.''