CPUU fails with a simiilar error to - "jsmith.ost is not an Outlook data file (.ost)." (4286295)

CPUU may fail to update a profile, logging the following errors:

29.02.2012 17:05:17 SM [Trace] Open the store 'Private Folders'.
29.02.2012 17:05:17 SM [Warning] Cannot open the message store 'Private Folders'.

MAPI error.
Error code: 0x8004011c
Extended error description:
Component: Outlook Data File
Error description: The file C:\Users\jsmith\AppData\Local\Microsoft\Outlook\jsmith.ost is not an Outlook data file (.ost).
Context: 269353222
Low level: 2147747861

29.02.2012 17:05:17 SM [Trace] Open the store 'Microsoft Exchange Message Store'.
29.02.2012 17:05:17 SM [Warning] Cannot open the message store 'Microsoft Exchange Message Store'.

MAPI error.
Error code: 0x8004011c
Extended error description:
Component: Outlook Data File
Error description: The file C:\Users\jsmith\AppData\Local\Microsoft\Outlook\jsmith.ost is not an Outlook data file (.ost).
Context: 269353222
Low level: 2147747861

MAPI error.
Error code: 0x8004011c
Extended error description:
Component: Outlook Data File
Error description: The file C:\Users\jsmith\AppData\Local\Microsoft\Outlook\jsmith.ost is not an Outlook data file (.ost).
Context: 269353222
Low level: 2147747861

29.02.2012 17:05:17 SM [Warning] Cannot update the 'E-mail Accounts' properties.

MAPI error.
Error code: 0x8004010f
Description: MAPI_E_NOT_FOUND

MAPI error.
Error code: 0x8004010f
Description: MAPI_E_NOT_FOUND