Error 0x800702A6

Value: -2147024218 | 0x800702A6 | 2147943078

What does it mean ?

ERROR_RXACT_COMMIT_NECESSARY  
This warning level status indicates that the transaction state already exists for the registry sub-tree, but that a transaction commit was previously aborted. // The commit has NOT been completed, but has not been rolled back either (so it may still be committed if desired).
Value: 678 | 0x02A6 | 0b0000001010100110

Where does it come from ?

FACILITY_WIN32  
Provides a way to handle error codes from functions in the Win32 API as an HRESULT. (Error codes in 16 - bit OLE that duplicated Win32 error codes have also been changed to FACILITY_WIN32)
Value: 7 | 0x007 | 0b00000111

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