I originally created factory default backups back when I purchase Acer Aspire 5733Z-4477 and a driver/apps backup - recently when I had problems with the Win 10 upgrade I decided to scrap Win 10 and go back to Win 7 factory default. The disks that I originally created for this when inserted into cd-rom tells me they are corrupt - all of them. I do very quickly remember that I had no issues creating these backups. But now they won't work. So I decided to use the eRecovery option that Acer provided. Install went 'okay' but not without stalls and issues.
With that finally don't I am constantly prompted to create 'factory default' backups, driver/app backup etc. My problem is that none of the disks that I use which are brand new are being accept - I am prompted top insert a 'BLANK' dvd (which it is). Unfortunately my model of Acer Aspire laptop does not ALLOW for backups to USB's - I have checked to make sure all drivers are current - according to Acer I have all the current but if I run something like driver detective it indicates that I have numerous out of date drivers - but I will not PAY to have some third party software tell me i have the wrong drivers.
At one point the error message was that I had a write failure with a 0x80000831 (?) error code. Since my original factory backups don't work and I can't seem to create any with new disks - what am I to do. When I do a chkdsk on the 
is there a special way to format disks in order to have this factory default be produced and hopefully work in the future should I ever need it again. when I format the disks they are labeled 'UDF'. Unfortunately I am not savy enough to know what this means and how to change it if that is the solution. I have looked tirelessly on the internet for answers - the problem certainly shows as existing but there are no resolutions - unless I missed a computer site that has more knowledge of this issue. Any help would be greatly appreciated.
