To: From: james I need mac help Sent Tue 5/13/2014 8:18:55 PM Subject: Re: Quick Question! Can't stop an OS upgrade; will corrupt existing OS & new one. The mavericks install takes a long time, best to be patient. Sorry. James Ce C Certified Support Professional 10.6 Need Mac Hel Inc. http://needmachelp.com Serving NYC since 1993 On May 13, 2014, at 4:06 PM, wrote: Hi James I am at home today and finally tired to upgrade my software on apple computer to maverick. The profess bar has been stuck at about 1/4 percent for an hour. It is not progressing. The entire screen is gray accept for the progress bar. When I hit escape, I hear the "bonk" sound. When I hold down the option key command key and escape key at the same time I hear a "bonk" sound. I can't get out of this. Is there a way to stop this upgrade? I don't know what to do. Can you help? Sent from my iPhone EFTA_R1_00720301 EFTA02105608