Windows 10: Tamper protection keeps turning off

Every whole or so i find out that tamper protection has been turned off (no notification), I turned it back on and did two separate scans with defender and malware bytes free, nothing shows up.

Half an hour later tamper protection is turned off again so I turn it on and do an offline scan. I’ve heard other people with this issue a while ago and I’m wondering if it’s a bug or malware that has passed my AV.

Thanks.

submitted by /u/_aliboi
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:)

 

Defender Tamper Protection/1903

Moderators: This thread deals with Defender Tamper Protection setting and 1903. If this would be better served in a different location, please feel free to move the post.

Just wondering if anyone who installed 1903 is having any unusual issue with Defender's Tamper Protection.
Here's the blow-by-blow.....

1. Friend and I were running 1809 and installed 1903 via Update Assistant on Tuesday, May 21st. No issues and Defender Tamper Protection was on (default setting).
2. Two days later, the 23rd, friend gets alert that Tamper Protection is off. She turned it on and it seems to be holding.
3. Today, I get the alert Tamper Protection is off and I turned it on. So far, it's holding.

I have no idea why Tamper Protection would turn off. Both computers are clean -- no viruses, trojans, malware or adware. We do not mess around in the registry and there is absolutely no third-party antivirus on either machine.

For now, I'm taking a wait-and-see if Tamper Protection turns off again. I don't know if it's a 1903 bug or not. Any ideas or suggestions would be appreciated.

 

Tamper protection in 1903?

No. Tamper protection means you can only make changes from within the Windows Security app. You can still turn off real time protection in the Windows Security app while tamper protection is in force.

 

Defender Tamper Protection/1903

I take back my words, it is specifically KB4052623 which turns Tamper protection mode off, not KB2267602. I got things mixed up because both KB2267602 and KB4052623 are typically offered as Windows Defender updates on a fresh install of Win10 1903. But installing those updates sequentially, I found that only KB4052623 shuts off the Tamper protection mode, and the only way to turn it back on is manually. It doesn't turn back on upon rebooting.

Tamper protection mode does stay on after switching it on manually, but I still think that Windows 10 updating itself should keep this setting on after an update if it was on before the update, and this should be automatic, without user input.