If you choose Online verification, you need to log into the management portal and choose Approve Uninstall.
After you press Uninstall you need to make a choice Online or Offline Verification.
Now if you have Anti-Tamper switched off in the group policy, the uninstalling process is over, but if not, you need to go through a couple of more steps.
We recommend contacting SentinelOne directly for further assistance. If SentinelOne was installed by another IT vendor, additional measures will be required. AND READ THE BELOW MESSAGE BEFORE CONTACTING MASIERO FOR ASSISTANCE UNINSTALLING SENTINELONE Please note that the below steps only apply to uninstalling SentinelOne Agents that were ORIGINALLY INSTALLED BY MASIERO.