Help - Can't Turn Windows Defender On!

I keep getting notifications that it's not on. When I go to Settings, it looks like what's below, and I can't get it to change. To be honest, I'm not even sure if this shows it's on (yeah, I'm uncertain about the toggle switch), but since I keep getting the warnings that it's off, I guess I've got problems.

 

Could you tell us more about the notifications/warnings you are getting?

 

They're from the "Action Center," which has an icon that looks kind of like a cartoon balloon (but square) at the bottom left side of my screen. Unfortunately, the notifications (1 per day) aren't there now because I clicked on them, so they disappeared. I don't have the exact wording because it now says "No New Notifications" but I'm sure I'll have another by tomorrow. This Action Center came when I installed Windows 10 and it has all sorts of things on the bottom in boxes, ie. Tablet Mode, All Settings, Connect, Notes, etc.

 

I have Advanced SystemCare 9, Malwarebytes AntiMalware, and Iobit Malware Fighter (and SmartDefrag and the Uninstaller), but someone on here recently told me Advanced SystemCare is not anti-virus, so I don't know about the others. I was just offered ByteFence, and was going to ask about it here when I noticed notifications that my Windows Defender isn't on.

 

Check whether you have Advanced SystemCare Free, PRO or Ultimate?
BTW You don't need ByteFence.

 

It's 9.4 PRO.
And thanks for the info about ByteFence.

 

Can you run Windows Defender?

 

If you bring up powershell (Within "ask me anything" type: powershell, click powershell), type in:

get-service "wdNisSvc" | fl Name,Status

Does status show running?

 

No, I can't seem to turn it on, or that's what the notifications I mentioned in the beginning keep telling me. When I go to Security and Maintenance, it says Windows Defender and Iobit Malware Fighter are both off. But when I try to turn Win Defenders on, it goes to the page(?) that is shown in my first post on this problem. Should I just get rid of Iobit? And now I see where Advanced System Care is part of Iobit too? I'm so confused!

 

I would uninstall Advanced SystemCare PRO. It does include "Basic Protection from Security Threats", whatever that means.
Also, check which versions of IObit Malware Fighter (Free or PRO) you have, as well as Malwarebytes Anti-Malware (Free or Premium).

 

Yay! I uninstalled Advanced SystemsCare PRO and all the Iobit stuff. When I did that, Windows Defender turned on automatically! So happy! A million thanks!
I got the Free Malwarebytes. With that and Windows Defender, am I safe or should I add anything else? What about anti-spyware?

 

I run Spyware Blaster, CryptoPrevent and BitDefender's AntiRansomware.

 

you need to turn malware fighter off and then restart the computer and you should beable to turn on windows defender

 

Thank you, everyone! I don't know what I would do without you! I've downloaded the recommended things and made a donation to this site. Really, you've helped me so much that I wish I could donate $100; you're certainly worth at least that much!