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On-Demand Scan times increase when scanning USB mass storage devices set to read-only
Technical Articles ID:   KB89788
Last Modified:  9/13/2017


McAfee VirusScan Enterprise (VSE) 8.8 with or without Patch 1 to 9
Microsoft Windows 7

USB Mass Storage devices (configured to be read-only)


When an On-Demand Scan (ODS) is performed on a USB mass storage device that is configured to be read-only, the duration of the ODS is greatly increased. For  example, an ODS that should take 10 minutes to complete will take 50 minutes on USB devices set to read-only.

NOTE: To verify whether the storage device is set to read-only, see the following registry key:


VSE 8.8 had an issue with a set file attributes on read-only media that resulted in the extended ODS times.





The content of this article originated in English. If there are differences between the English content and its translation, the English content is always the most accurate. Some of this content has been provided using Machine Translation translated by Microsoft.

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