Alpha client loses process

Dear Riot community, I was suffering from the disconnecting bug earlier today so I reinstalled the program using hextech repair program (my worst mistake so far) My net is not so fast (2000+ Kb download speed) so it took a while to reinstall the client and start the patching. When it was done and the Launch tab was shown, I clicked on it and it restarted the entire download process (back to Step 1/2). This has been a problem for several hours as I repeated this process everytime and whenever I clicked on Launch after the patching was done it kept restarting T_T