If you suspect that a new update of the virus database and/or program modules may be unstable or corrupt, you can roll back to the previous version and disable updates for a set period of time. Alternatively, you can enable previously disabled updates if you had postponed them indefinitely.
ESET NOD32 Antivirus records snapshots of virus signature database and program modules for use with the rollback feature. In order to create virus database snapshots, leave Create snapshots of update files check box selected. The Number of locally stored snapshots field defines the number of previous virus database snapshots stored.
If you click Rollback (Advanced setup (F5) > Update > General), you have to select a time interval from the Duration drop-down menu that represents the period of time that the virus signature database and program module updates will be paused.
Select Until revoked to postpone regular updates indefinitely until you restore update functionality manually. Because it represents a potential security risk, we do not recommend selecting this option.
If a rollback is performed, the Roll back button changes to Allow updates. No updates will be allowed for the time interval selected from the Suspend updates drop-down menu. The virus signature database version is downgraded to the oldest available and stored as a snapshot in the local computer file system.