Before installing updates to the managed devices, you can first check the updates for operability and errors through the Update verification task. The Update verification task is performed automatically as part of the Download updates to the Administration Server repository task. The Administration Server downloads updates from the source, saves them in the temporary repository, and runs the Update verification task. If the task completes successfully, the updates are copied from the temporary repository to the Administration Server shared folder. They are distributed to all client devices for which the Administration Server is the source of updates.
If, as a result of the Update verification task, updates located in the temporary repository are incorrect or if the Update verification task completes with an error, such updates are not copied to the shared folder. The Administration Server retains the previous set of updates. Also, the tasks that have the When new updates are downloaded to the repository schedule type are not started then. These operations are performed at the next start of the Download updates to the Administration Server repository task if scanning of the new updates completes successfully.
A set of updates is considered invalid if any of the following conditions is met on at least one test device:
If none of the listed conditions is true for any test device, the set of updates is considered valid, and the Update verification task is considered to have completed successfully.
Before you start to create the Update verification task, perform the prerequisites:
We recommend using devices with the most reliable protection and the most popular application configuration across the network. This approach increases the quality and probability of virus detection during scans, and minimizes the risk of false positives. If viruses are detected on test devices, the Update verification task is considered unsuccessful.
When creating the Update and Virus Scan tasks, specify the administration group with the test devices.
To make Kaspersky Security Center verify downloaded updates before distributing them to client devices:
After that, the following options appear. We recommend leaving them enabled:
The automatic update verification is enabled. Now, you can run the Download updates to the Administration Server repository task, and it will start from update verification.