Hi. I am running windows 7 x64. Yesterday I noticed that my game assassin's creed which ran in directx 10 mode earlier was running in directx 9 mode, So, I tried to force it in directx 10 mode but it gave error and exited. Then I tried to run direct x diagnostic tool dxdiag.exe but it is not opening up. It gives an error "dxdiag.exe- bad image C:\Winodws\sysWOW64\d3d10.dll is either not desgined to run on Windows or it contains an error." and when I press okay button then it says "Error: Could not load DXDIAGGN.dll".
I have tried reinstalling my latest graphics drivers but no avail. I also tried updating directx but it says that I already have the most recent updates. I also have all the updates installed via windows updates. I have been using some registry cleaners but I have undone all the changes even after that it doesn't work.
Any help will be appreciated.
