Windows 10: Windows defender wont scan at all, security intelligence version is 0.00.0

I haven't used my pc in a few weeks and now coming back to it windows defender doesn't work at all and my browser crashes on startup, im not sure if ive got some kind of virusWhen I first came back to using my pc, my browser firefox would crash on startup I cant see anything while its starting, then just crashes instantly, tried a windows defender scan and its not working at all, version apparently set to 0.00.0, ive tried a lot of the advice ive found online, cleared a load of space to make updates which I hadn't been able to install for like a year, looked to see if there was any install

:)

 

KB2267602 Windows Defender Update -- Is installing never > 0% Normal

Hi g33, Welcome to 10F! *Smile

You'll see different kinds of behavior, but that's normal. I had one this morning when I took a look at updates, it went from pending D/L to D/Ling, then pending install, to installing, to what you saw, installing - 0%, then Done an it disappeared, rechecked for updates and finally finished telling me I'm up-to-date.

All my progress indicators showed 0% *Eek *chuckle

• If you want or need to check the updates installed refer to this tutorial: Update Security Intelligence Definition for Windows Defender Antivirus It'll show you how to get to updates and when there click on View update history.

• To find Defender's versions see; Find Windows Defender Antivirus Version in Windows 10

 

Defender Quick Scan not remembered

I keep seeing requests for quick scans every few days in Defender. Should be more time between requests.

I checked the Defender log, and extracting from recent sequential Events 1151, I get this:

2020-02-16 Last quick scan age: 0 Last full scan age: 50

2020-02-17 Last quick scan age: 1 Last full scan age: 51

2020-02-18 Last quick scan age: 4294967295 Last full scan age: 52

2020-02-19 Last quick scan age: 4294967295 Last full scan age: 53

2020-02-20 Last quick scan age: 4294967295 Last full scan age: 54

here I did a manual quick scan

2020-02-20 Last quick scan age: 0 Last full scan age: 54

2020-02-21 Last quick scan age: 1 Last full scan age: 55

2020-02-22 Last quick scan age: 4294967295 Last full scan age: 56

2020-02-23 Last quick scan age: 4294967295 Last full scan age: 572020-02-24 Last quick scan age: 4294967295 Last full scan age: 58

2020-02-25 Last quick scan age: 4294967295 Last full scan age: 59

here I did another manual quick scan

2020-02-26 Last quick scan age: 0 Last full scan age: 59

Of note, here is the complete report when the last quick scan was completed and quick scan age was reset to 0:

Endpoint Protection client health report (time in UTC):

Platform version: 4.18.1911.3

Engine version: 1.1.16800.2

Network Realtime Inspection engine version: 1.1.16800.2

Antivirus security intelligence version: 1.311.77.0

Antispyware security intelligence version: 1.311.77.0

Network Realtime Inspection security intelligence version: 1.311.77.0

RTP state: Enabled

OA state: Enabled

IOAV state: Enabled

BM state: Enabled

Antivirus security intelligence age: 0

Antispyware security intelligence age: 0

Last quick scan age: 0

Last full scan age: 59

Antivirus security intelligence creation time: 2/26/2020 12:31:42 AM

Antispyware security intelligence creation time: 2/26/2020 12:31:42 AM

Last quick scan start time: 2/26/2020 4:49:59 AM

Last quick scan end time: 2/26/2020 4:50:56 AM

Last quick scan source: 1

Last full scan start time: 12/28/2019 3:46:28 PM

Last full scan end time: 12/28/2019 6:25:49 PM

Last full scan source: 1

Product status: 0x00080000

And here is the report right before, when the quick scan age is wrong:

Endpoint Protection client health report (time in UTC):

Platform version: 4.18.1911.3

Engine version: 1.1.16800.2

Network Realtime Inspection engine version: 1.1.16800.2

Antivirus security intelligence version: 1.311.77.0

Antispyware security intelligence version: 1.311.77.0

Network Realtime Inspection security intelligence version: 1.311.77.0

RTP state: Enabled

OA state: Enabled

IOAV state: Enabled

BM state: Enabled

Antivirus security intelligence age: 0

Antispyware security intelligence age: 0

Last quick scan age: 4294967295

Last full scan age: 59

Antivirus security intelligence creation time: 2/26/2020 12:31:42 AM

Antispyware security intelligence creation time: 2/26/2020 12:31:42 AM

Last quick scan start time: 1/1/1601 12:00:00 AM

Last quick scan end time: 1/1/1601 12:00:00 AM

Last quick scan source: 0

Last full scan start time: 12/28/2019 3:46:28 PM

Last full scan end time: 12/28/2019 6:25:49 PM

Last full scan source: 1

Product status: 0x00080080

Clearly something gets screwed up with the scan dates after a couple of days following a quick scan, which gets reset to 0 following a quick scan.

Any ideas?

 

Windows Defender Network Inspection Service fails to start

You said otherwise defender work?

If you go to Event viewer, and select Application and service logs /Microsoft / Windows / Windows defender ( Operational and look for ev, n. 1151

There you have all the info - Health report

Code: