If you have Veeam backup failing with the Updating BCD failed with Cannot update SafeBoot flag and SentinelOne is installed. Try the following from a veeam forum post
29/11/2023 2:35:29 PM :: Processing TGN-HO-DC02 Error: VSSControl: -2147467259 Backup job failed.
Cannot create a shadow copy of the volumes containing writer's data.
Cannot prepare the [NTDS] data to a subsequent restore operation.
Cannot process NTDS data.
Updating BCD failed.
Cannot update SafeBoot flag.
https://forums.veeam.com/post503754.html#p503754
cd "C:\Program Files\SentinelOne\Sentinel Agent 22.3.5.887"
sentinelctl config antiTamperingConfig.allowSignedKnownAndVerifiedToSafeBoot true -k "passphrase"
# check it
sentinelctl config antiTamperingConfig.allowSignedKnownAndVerifiedToSafeBoot
reboot
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