Have you got the following error message ? Failed to read from the sector 218,129,637 of the hard disk 3. This happened to me when trying to install Acronis Disk Director Suite 10. I followed all the advice i.e. run chkdsk to fix file structure errors which usually does help with Acronis products and also fixboot and fixmbr all to no avail. My next thought was that as I have 6 partitions, perhaps there’s a problem with the third, I quickly dismissed this thought as I realised that the technical people at Acronis would most certainly call a spade a spade not a fork. By this I mean a partition is NOT a hard disk. Then the penny finally dropped, perhaps Acronis really did see what it “thought” was a third hard disk and could not access it! I finally remembered that I had a RAMDisk installed and that my Temporary Internet Folder was on it. Clearly, Acronis Disk Director "thought" Sperspeed RAMDisk was a real hard drive but could not recognise it's location in RAM !!! Bingo! So my solution, which worked, was as follows, 1/ Disabled the RAM Disk thus Start->Control Panel->System->Hardware->Device Manager-> Disks and disable Superspeed RAMDisk 2/ The install of Acronis Disk Director Suite 10 now worked perfectly. 3/ Tidied up the loose ends by uninstalling RAMDisk and reinstalling it. PROBLEM SOLVED.