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General Security Discussions
Is reinstalling Windows needed after changing AV?
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<blockquote data-quote="Ink" data-source="post: 932659" data-attributes="member: 3"><p>Microsoft Defender will remain on your system regardless of using another Antivirus or not, and automatically reactivates upon uninstallation of any third-party Antivirus software. You can optionally use a limited mode of Microsoft Defender Antivirus with third-party Antivirus via it's Periodic Scanning feature. <a href="https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-antivirus/limited-periodic-scanning-microsoft-defender-antivirus" target="_blank">More info</a>.</p><p></p><p>Security vendors provide Antivirus Removal Tools for broken uninstalls, but can be used before installing another AV software.</p><p></p><p>Removal Tools:</p><p>For Bitdefender: <a href="https://www.bitdefender.com/uninstall/" target="_blank">Uninstall Bitdefender</a></p><p>For Avast: <a href="https://www.avast.com/uninstall-utility" target="_blank">Avast Uninstall Utility | Download aswClear for Avast Removal</a></p><p>For Kaspersky: <a href="https://support.kaspersky.co.uk/common/uninstall/1464" target="_blank">Removal tool for Kaspersky applications (kavremover)</a></p><p></p><p>*Reinstalling the OS should not be an issue unless you are experiencing major problems with the OS.</p><p></p><p>Edit: *Clarification for when to reinstall the OS.</p></blockquote><p></p>
[QUOTE="Ink, post: 932659, member: 3"] Microsoft Defender will remain on your system regardless of using another Antivirus or not, and automatically reactivates upon uninstallation of any third-party Antivirus software. You can optionally use a limited mode of Microsoft Defender Antivirus with third-party Antivirus via it's Periodic Scanning feature. [URL='https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-antivirus/limited-periodic-scanning-microsoft-defender-antivirus']More info[/URL]. Security vendors provide Antivirus Removal Tools for broken uninstalls, but can be used before installing another AV software. Removal Tools: For Bitdefender: [URL='https://www.bitdefender.com/uninstall/']Uninstall Bitdefender[/URL] For Avast: [URL='https://www.avast.com/uninstall-utility']Avast Uninstall Utility | Download aswClear for Avast Removal[/URL] For Kaspersky: [URL='https://support.kaspersky.co.uk/common/uninstall/1464']Removal tool for Kaspersky applications (kavremover)[/URL] *Reinstalling the OS should not be an issue unless you are experiencing major problems with the OS. Edit: *Clarification for when to reinstall the OS. [/QUOTE]
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