Try the download from this link click here and see if it works any better. If not right click the Google_Earth_BZXV.exe file and there should be a tab called compatibility-try clicking the box that says run as "windows xp sp2" compatibility mode, although I've never has any problems running it natively under vista myself.
Unfortunately, I've already tried this, and have redownloaded the exe several times, and yes I've also tried deleting the previous exe(s). I've also tried subsequent exe releases with the same failed results.
Do you have ccleaner installed? If not download and install it from click here . To run it, once installed type in the start search box ccleaner but make sure you "run as administrator". On the right hand side click registry, and scan and fix any issues (making the backups at the prompt) until no more appear when you scan. I know when I've uninstalled google earth in the past its left >300 registry entries, if any of these is corrupt it could be stopping your installation.
Thanks once again, but yes I do have CCleaner installed, and have run as administrator. I've also separately removed all references to "Google" from the registry, without success. I've "Google searched" for solutions and even tried the "Google Esrth Help" group, without success.
Tried this, but the dialogue box did not contain any references to Google or Google Earth. I did not continue as the program warned me that I might have to reinstall a large number of other programs that were referred to in the dialogue box.
Thanks once more for your continued help, but I suspect this will not be redolved easily.