Windows Defender for Win10 v1709 and Rootkits?

In the latest Fall Creators Update, does Windows Defender have the ability to scan for Rootkits which are hidden during boot time?

Windows defender offline used to be only a stand alone product.
It became integrated into Windows 10 in either 1511 or 1607.

It will scan for rootkits:
Windows Defender Offline in Windows 10 | Microsoft Docs
This link has downloadable version: https://support.microsoft.com/en-us/...-protect-my-pc
It's run in a windows PE and you can make a USB or CD: https://support.microsoft.com/en-us/...-protect-my-pc
Troubleshoot detection and removal of viruses, malware, and other threats - Windows Defender Security Intelligence

I tried it and seemed to scan it with only the quick scan. But is there a way to do a Full scan as well when selecting Offline scanning?

Also I noticed that it doesn’t provide scan results. Is there a way to check?

WDO is only done if fast mode. The rest of the scanning is done as a full scan when online.
Virus and threat protection > scan history

So just to confirm, that this Offline scans do detect Rootkits if discovered, is this correct?

Under Virus and threat protection > scan history, there is no listing for Offline Scan History.

win10freak said:

So just to confirm, that this Offline scans do detect Rootkits if discovered, is this correct?

Windows Defender can detect rootkits, then tell you to run Defender Offline to remove them.

Microsoft said:

Run Windows Defender Offline if:

• Windows Defender detects rootkits or other highly persistent malware on your PC and alerts you to use Windows Defender Offline...

https://support.microsoft.com/en-gb/...-protect-my-pc