Windows 10: Reactivate Windows Defender and Windows Security

Hi, I accidentally deactivated my Windows Defender security system and when I installed the latest Windows 11 update 23H2 I'm unable to sign in to my school account and when I restart my laptop the sign in button gets greyed out and I can't use my laptop at all. Is there a way I can fix this and reactivate Windows Defender so my PC can run as it used to? I've attached a screenshot of Windows Defender and it's just black, there is nothing showing. I've tried using Control Panel to reactivate it but it doesn't work screenshot attachedPlease help, I'm basically locked out of my PC now

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"Attestation" A new feature coming to Windows Defender in Windows 10

Tech Republic - Upcoming Windows Defender feature will tell you when security fails

This seems very promising. Microsoft is in the unique position to know what Windows should look like, even before Windows Update pushes out new changes. As long as MS can properly sync WD with WU changes AND this new features does not make any "noticeable" hit on system performance/resources, all without any false positives, this should be a big step forward for consumer security, and a blow to the bad guys - always a good thing.

Of course, there will likely be some hiccups the Windows/Microsoft/Windows Defender bashers will surely pounce on - regardless how extensive the Beta process is. But hopefully open and unbiased minds will prevail. After all, the goal is to stop the bad guys and if this gets us closer to that, that's a very good thing.

For more detailed information, see Introducing Windows Defender System Guard runtime attestation)

 

Windows Defender Released

Microsoft has released the final version of its Windows Defender anti-spyware utility. Windows Defender is a product of the Microsoft acquisition of GIANT Software. Previously known as Windows AntiSpyware, after a two years beta period it's now available for Windows XP and Windows Server 2003 under the name Windows Defender. Windows Defender incorporates Real-Time Protection to monitor systems for spyware activity, automated spyware removal with scheduled scans, full integration with Internet Explorer 7.0 and automatic spyware definition updates from Microsoft. Windows Defender is available freely to all customers running a genuine copy of Windows. Microsoft has also announced that customers will each be allowed to report two support incidents for free with Windows XP and Windows Server 2003.

Source: DailyTech

 

Windows Security

Is Windows Security, Fire Wall and Defender enough to protect a system? All I use it for is games, email, and some surfin the net.