ContributionsMost RecentMost LikesSolutionsRe: Massive speed drop when backing up anything from Exchange 2003I'm having the exact same problem, and have tried all the same remedies to no avail!! Please help... Elizabeth SengerBackupExec Hanging on PreprocessingI've moved our copy of Backup Exec 9.1 to a new server, and now it won't backup two of our three servers. It hangs at the pre-processing stage for 45 hours. I've researched this in the knowledge base and have: -installed all patches & upgrades -made both registry changes as recommended for the preprocessing error, even though one of the patches theoretically fixed this. It will backup the Exchange server but it is now extremely slow (1 G of data took over 12 hours). What else can I try? Thanks!