Windows 10: virus protection only do quick scan

Hello,I am using windows defender and if it detects a virus I just do quick scan however, it would not give me any action it only shows quick scan again? What to do?

:)

 

2 windows 10 alert messages of "virus protection is currently not on," and "windows defener action needed to do a virus scan,"

while on a website I get the warning my virus protection is not on, I got to defender and it is on. and on occasion I get an action recommended, with a exclamation mark triangle on the windows defender icon on the task bar. so I open that and there's the
warning triangle on the "virus and threat protection" and it has a last scheduled scan being a couple weeks old but the windows defender security system window says "your device is being protected" and a daily update and scan are listed:

last threat scan 1-14-2018

last threat definition update 1/28/2018

last health scan 1/28/2018

virus & threat protection has Quick scan due.....(why?) isn't that all automatic?

thank you.

 

Virus scan options missing - quick scan only, advanced scan crashes

Title pretty much says it all - my Windows Defender "Virus & threat protection" window shows only the "scan now" button with no quick/full/custom options. See screenshot.





In addition, clicking "Run a new advanced scan" causes a brief wait-pointer before the window simply closes.

Is there a way to restore access to the scan options?

Many thanks,

Mark A.

 

Windows Security Virus Scan

Please confirm you don't have a list like this:




e.g. from here (or via the control panel):




If not, suggests deeper problems. To which uninstall option are you referring? (A picture is worth...)