您仍然需要一种可靠的备份、还原和灾难恢复计划来应对这类事件。
You still need a reliable backup, restore and disaster recovery plan in place for such events.
出现这些问题时，您可以撤消更新，也可以通过还原环境的稳定状态来恢复更改之前的状态。
When these problems occur, you can either undo the updates, or recover from the changes by restoring a stable state of the environment.
它还清除掉系统还原设置，使其难以恢复系统。
It also wipes out the system restore with a reset, making it harder to recover the system.
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