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Author Topic: Cannot open backup device. Operating System error 5 - MSSQL Database backup  (Read 5640 times)

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While backing up a database from WSP or from Msqlmanagement studio, it fails with error

"Cannot open backup device. Operating System error 5"


Kindly make sure that the sql express service is running with user "localhost\administrator"

If not,

You can change the log on for the service from

Run > services.msc > go to the respective service name > right click properties > log on

Here you can change the user that runs the service.

I changed the service to run from localhost\administrator and than I could backup the database without any issue.

Thank you,