Alternatively, you can click the Start {“smallUrl”:“https://www. wikihow. com/images/0/07/Windowsstart. png”,“bigUrl”:"/images/thumb/0/07/Windowsstart. png/30px-Windowsstart. png",“smallWidth”:460,“smallHeight”:460,“bigWidth”:30,“bigHeight”:30,“licensing”:"<div class="mw-parser-output">

I edited this screenshot of a Windows icon. \n</p>

License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="http://en. wikipedia. org/wiki/Public_domain">Public Domain</a>
\n</p></div>"} button, type windows defender security center and click the matching result. You can also click the start {“smallUrl”:“https://www. wikihow. com/images/0/07/Windowsstart. png”,“bigUrl”:"/images/thumb/0/07/Windowsstart. png/30px-Windowsstart. png",“smallWidth”:460,“smallHeight”:460,“bigWidth”:30,“bigHeight”:30,“licensing”:"<div class="mw-parser-output">

I edited this screenshot of a Windows icon. \n</p>

License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="http://en. wikipedia. org/wiki/Public_domain">Public Domain</a>
\n</p></div>"} button, click on settings. Click Update and Security. Select Windows Security > Open Windows security.

Alternatively, you can click the Start {“smallUrl”:“https://www. wikihow. com/images/0/07/Windowsstart. png”,“bigUrl”:"/images/thumb/0/07/Windowsstart. png/30px-Windowsstart. png",“smallWidth”:460,“smallHeight”:460,“bigWidth”:30,“bigHeight”:30,“licensing”:"<div class="mw-parser-output">

I edited this screenshot of a Windows icon. \n</p>

License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="http://en. wikipedia. org/wiki/Public_domain">Public Domain</a>
\n</p></div>"} button, type windows defender security center and click the matching result. You can also click the start {“smallUrl”:“https://www. wikihow. com/images/0/07/Windowsstart. png”,“bigUrl”:"/images/thumb/0/07/Windowsstart. png/30px-Windowsstart. png",“smallWidth”:460,“smallHeight”:460,“bigWidth”:30,“bigHeight”:30,“licensing”:"<div class="mw-parser-output">

I edited this screenshot of a Windows icon. \n</p>

License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="http://en. wikipedia. org/wiki/Public_domain">Public Domain</a>
\n</p></div>"} button, click on settings. Click Update and Security. Select Windows Security > Open Windows security.

Alternatively, you can click the Start {“smallUrl”:“https://www. wikihow. com/images/0/07/Windowsstart. png”,“bigUrl”:"/images/thumb/0/07/Windowsstart. png/30px-Windowsstart. png",“smallWidth”:460,“smallHeight”:460,“bigWidth”:30,“bigHeight”:30,“licensing”:"<div class="mw-parser-output">

I edited this screenshot of a Windows icon. \n</p>

License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="http://en. wikipedia. org/wiki/Public_domain">Public Domain</a>
\n</p></div>"} button, type windows defender security center and click the matching result. You can also click the start {“smallUrl”:“https://www. wikihow. com/images/0/07/Windowsstart. png”,“bigUrl”:"/images/thumb/0/07/Windowsstart. png/30px-Windowsstart. png",“smallWidth”:460,“smallHeight”:460,“bigWidth”:30,“bigHeight”:30,“licensing”:"<div class="mw-parser-output">

I edited this screenshot of a Windows icon. \n</p>

License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="http://en. wikipedia. org/wiki/Public_domain">Public Domain</a>
\n</p></div>"} button, click on settings. Click Update and Security. Select Windows Security > Open Windows security.

It resembles a colored shield icon. {“smallUrl”:“https://www. wikihow. com/images/thumb/6/60/New-win-10-def-updtd. png/460px-New-win-10-def-updtd. png”,“bigUrl”:"/images/thumb/6/60/New-win-10-def-updtd. png/728px-New-win-10-def-updtd. png",“smallWidth”:460,“smallHeight”:325,“bigWidth”:728,“bigHeight”:514,“licensing”:"<div class="mw-parser-output">

Image by: Uploader
\nLicense: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://creativecommons. org/licenses/by/3. 0/">Creative Commons</a>\n</p></div>"}

In the new Feature update to Windows 10, version 1803, the option Protection updates is turned to Virus and threat protection updates. {“smallUrl”:“https://www. wikihow. com/images/6/65/Vir-prot-upd. png”,“bigUrl”:"/images/thumb/6/65/Vir-prot-upd. png/412px-Vir-prot-upd. png",“smallWidth”:460,“smallHeight”:157,“bigWidth”:412,“bigHeight”:141,“licensing”:"<div class="mw-parser-output">

Image by: Uploader
\nLicense: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://creativecommons. org/licenses/by/3. 0/">Creative Commons</a>\n</p></div>"}

In the new Feature update to Windows 10, version 1803, the option “Advanced scan” is turned to “Run a new advanced scan”. {“smallUrl”:“https://www. wikihow. com/images/2/23/Win-def-10-new. png”,“bigUrl”:"/images/thumb/2/23/Win-def-10-new. png/250px-Win-def-10-new. png",“smallWidth”:460,“smallHeight”:270,“bigWidth”:250,“bigHeight”:147,“licensing”:"<div class="mw-parser-output">

Image by: Uploader
\nLicense: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://creativecommons. org/licenses/by/3. 0/">Creative Commons</a>\n</p></div>"}

In the new Feature update to Windows 10, version 1803, the option “Advanced scan” is turned to “Run a new advanced scan”. {“smallUrl”:“https://www. wikihow. com/images/2/23/Win-def-10-new. png”,“bigUrl”:"/images/thumb/2/23/Win-def-10-new. png/250px-Win-def-10-new. png",“smallWidth”:460,“smallHeight”:270,“bigWidth”:250,“bigHeight”:147,“licensing”:"<div class="mw-parser-output">

Image by: Uploader
\nLicense: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://creativecommons. org/licenses/by/3. 0/">Creative Commons</a>\n</p></div>"}

You might need to enter the password to an admin account.