What happens if we dont enable perodic assement, does patches wont apply to virtual machines?

Hello, @Varma !

What happens if periodic assessment is not enabled on my virtual machines?

There are multiple ways to update your VMs, so having periodic assessment disabled doesn't necessarily mean that security updates won't be applied to your VM.

Periodic Assessment is a setting on your machine that enables update manager to fetch the latest updates on your machine once every 24 hours. It removes the hassle of performing assessment manually every time you need to check the update status.

Automatic Guest Patching (when enabled) helps make update management easier by automatically patching virtual machines to maintain security. Patches classified as Critical or Security are automatically downloaded and applied on the VM. When applied across regions, a monthly update is orchestrated across Azure globally in a phased manner to prevent global deployment failures. The patch installation date for a given VM may vary month-to-month, as a specific VM may be picked up in a different batch between monthly patching cycles.

Additional reading:

• Guest updates and host maintenance overview

I hope this has been helpful! Your feedback is important so please take a moment to accept answers.

If you still have questions, please let us know what is needed in the comments so the question can be answered. Thank you for helping to improve Microsoft Q&A!