Bitcoin qt synchronizing with network slow after windows 7
Next, add the command line option datadirusing the path to your data directory. Windows users can create a shortcut that uses the command line option datadir. Command Line Parameter Instead of pulling the data directory out from under Bitcoin Core and then supplying a new path after startup, the data directory can be passed as the command line parameter datadir. Copying data may require only a few minutes or a couple of hours, depending on how up-to-date your copy of the block chain is and the speed of your hardware.
It also allows multiple data directories to be used side-by-side. Windows Explorer should now display an AppData folder. Begin by launching the Terminal application. Assuming there were no issues with the move, the original can now be deleted. Windows Explorer should now display an AppData folder.