MY ISSUE IS AFTER REPLACING TWO DEFECTIVE HARD DRIVES 1-WD 320 & 1SEAGATE 500 WITH A NEW WD BLACK 750 AND AFTER USING THE ACER RECOVERY SOFTWARE I CAN'T UPDATE WINDOWS. I GET AN ERROR MESSEGE WHEN TRYING TO UPDATE, THE ERROR MESSAGE IS 8024A000 THERE ARE A FEW OTHER PROBLEMS I THINK ALL PERTAIN TO THE SAME PROBLEM. ONE IS THAT I CAN'T USE MICROSOFT WEBSITES VERY WELL, IT TELLS ME TO DOWNLOAD IE8 WHICH IS NOT FOR WIN VISTA & I CAN'T INSTALL IE9. ALSO SOME OF MICROSOFT WEBSITES WILL NOT LET ME ON, I GET AN ERROR MESSAGE WHICH IS ( OPERATION ABORTED ) FYI - I HAVE BUILT AND WORKED ON COMPUTERS ALL MY LIFE AND NEVER HAD AN ISSUE LIKE THIS. I HAVE USED MY RECOVERY SOFTWARE MANY TIMES ON THE OTHER TWO HARD DRIVES WITH NO ISSUES UNTIL THEY DIED. ANY HELP WITH THIS PROBLEM WOULD BE VERY HELPFUL & APPRECIATED