Error - The System Cannot Find the Path Specified. Error 0x80070003 (4291827)

New messages are not being archived and the ESM logs (WLOG) are showing an error similar to:

[80070003] The system cannot find the path specified.
ERROR: Unable to export message to 'C:\Quest Software\ArchiveManager\Export\\cb05d4fb-b2f0-dc02-733e-5e03cd279574':
IXmlWriter.Create(C:\Quest Software\ArchiveManager\Export\\cb05d4fb-b2f0-dc02-733e-5e03cd279574)
Error 0x80070003
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The Export directory has been removed or has become corrupt.

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1. Attempt to open the Export directory by navigating to the path in the error log, by default this is C:\Quest Software\ArchiveManager\Export\.
2. Create a new directory called ExportNew in C:\Quest Software\ArchiveManager\
3. Open the Archive Manager Configuration Editor and select the General tab
4. In the DataExportDirectory field, change the value to the new Export directory, for example C:\Quest Software\ArchiveManager\ExportNew\
5. Open the Archive Manager website and navigate to Administration | Data Loaders
6. Edit the File System Data Loader and update the path to the newly created directory, for example C:\Quest Software\ArchiveManager\ExportNew
7. If any *.XML files are present in the original Export directory, copy these files over to the new Export directory
8. Restart the Archive Manager Exchange Store Manager Service and Archive Manager Data Load Service
9. Verify new *.XML's are being populated and purged in the new Export directory