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What is the __acro_subst_user__ account used for?

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I installed Acronis Backup & Recovery 10 (build 10.0.11133) on a Vista X64 Business Laptop several months ago. Just now noticed the __acro_subst_user__ account in Vista Computer Management. I'm wondering what its used for because it's not a 'Member Of' any group. The membership windows is empty. Help...

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Hello Kevin!

Welcome to Acronis Forum, we're glad you joined us!

_acro_subst_user_ was required previously for starting the services, but is not longer needed in the latest builds, so I would suggest you to download the latest version of Acronis Backup & Recovery 10 (build 11639) from your account, install it and safely delete this User.

Should you need anything else or have any further questions - feel free to contact us at your earliest convenience, we will be happy to help you!

Thank you!