Hi @NamanR,
I have (also according to Windows Control Panel > Installed Updates) successfully installed KB2919355 on 13th Apr 2014. The abovementioned (by Naman R) method was used at the time in that case. So to me, the KB2919355 is in place (and various
KB installations after that, too) <- I do get all the Windows System updates (including security updates) BUT not Windows Store application updates.
So the problem is the "Windows Store failed to sync machine licenses. Result code 0x80070490"
TEMPORARILY running Windows update troubleshooter
fixes the problem (stops and restarts BITS and Cryptographic services), BUT after rebooting Windows the problem (Windows Store failed to sync machine licenses. Result code 0x80070490) always re-appears.
Here is the report of successfull Windows update troubleshooter.
Dism /Online /Cleanup-Image /ScanHealth ->
[==========================100.0%==========================]
The component store is repairable.
The operation completed successfully.
Then run:
Dism /Online /Cleanup-Image /RestoreHealth ->
[==========================100.0%==========================]
The restore operation failed. Either the repair source was not found or the comp
onent store cannot be repaired.
Error: 0x800f081f
DISM failed. No operation was performed.
For more information, review the log file.
The DISM log file can be found at C:\WINDOWS\Logs\DISM\dism.log
Here is my DISM log file.