|AutoIt is a very useful scripting feature. Either you or someone else put this script in place to "do something" during startup.|
For the time being go to the Start orb and look for a folder called Startup. Delete whatever is in there (into the bin). This should prevent the error message. You then need to decide what this entry was all about and whether it is something you need and want to amend. It could be the remnants of a virus because Windows.exe does not appear to be a valid Windows file.
In the unlikely event that you have more than one entry in Startup you will then need to delete all of them, then restore them from the bin one at a time until you find which one is the culprit. Items in Startup are not part of Windows install - they are something that has been added since.
You say "I can access the computer". I hope you don't mean can't.
If you can't get to Windows you will have to try the above from Safe Mode (tap F8 key while booting) - hope it works.
What was the reason you installed Windows 7 twice? If it was because of the above problem then you might have introduced a more serious issue which could be a lot harder to overcome.
Always pop back and let us know the outcome - thanks