My experience has shown me that the simpler your System configuration is, the better FlashBack performs. On all the systems I've used it on, the most successful were Legacy-MBR systems with NO Microsoft RECOVERY or SYSTEM RESERVED partitions. Also, the antivirus/antimalware systems have been kept to a minimum instead of having (19) different protection mechanisms all running side by side... I don't need this as I have practiced SAFE NET since the inception of computer virii. This, of course, is not under your control when you speak of client/other systems. Although many users have had really good luck with v22.214.171.124 (beta), its HOT restore has inherent design issues associated with LIVE systems. The WARM restore methods (WinPE-based and the newer Native NT API-based) have proven to be much safer in general. The newest Native NT API mode seems to be the best yet but its release is still in the BETA stages (most recent being Build #698... now known as "FlashBack"). It was supposed to be out at the end of October but other issues with the app (not necessarily the Native Mode restore) have delayed its release.