Hello Hi,
Good Day!!
I am Ramya, I am Happy to assist you today.
Your concern is understandable given the recent issues with CrowdStrike’s Falcon Sensor update. Don't worry that the issue has been identified and a fix has been deployed.
Updating Windows Defender on Windows 11 Enterprise edition should be safe. Windows Defender operates independently of CrowdStrike’s Falcon Sensor, so updating it should not cause any issues related to the recent CrowdStrike problem.
If you are still concerned, you might consider temporarily using another reputable antivirus program.
Stay Safe.
Thanks,
Ramya