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VSS Doctor - Disk I/O Load - Invalid Query

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I'm making sure the health of VSS is where it should be on some of my machines. I'm running VSS Doctor and one of them shows an error every time on Disk I/O Load, coming back with "Invalid query". What would cause this and is it fixable?

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Joel, sorry but difficult to say why any specific error may be shown for VSS Doctor as it can be affected by factors such as your security / antivirus / anti-malware applications.

I suspect that you would need to discuss this issue directly with Acronis as they will know what functions are being used 'under the covers' for VSS Doctor to collect system information such as determining Disk I/O load values etc.

Joel, I don't know how Acronis provide support, if at all, for the VSS Doctor tool, so can only suggest dropping a private message to Renata Gubaydullina | Product manager, Acronis True Image to see if she can help in any way?