SFC /SCANNOW Command - System File Checker

Tried got the following message:
[IMG]file:///C:/Users/Tony%20Van%20Laere/AppData/Roaming/Microsoft/windows/upgrade/images/alert.gif[/IMG] The following issues are preventing Windows from upgrading. Cancel the upgrade, complete each task, and then restart the upgrade to continue.

• Your current version of Windows is more recent than the version you are trying to upgrade to. Windows cannot complete the upgrade.
  
  

[IMG]file:///C:/Users/Tony%20Van%20Laere/AppData/Roaming/Microsoft/windows/upgrade/images/warning.gif[/IMG] Upgrading Windows will affect the following devices and/or programs:

• These devices might not work properly after the upgrade. Before upgrading, we recommend updating the drivers for these devices. Cancel the upgrade, open Control Panel and search for "update device drivers", or go to the device manufacturer's website to search for updated drivers.

• • Storage controllers: AD4BML2X IDE Controller

• These programs might not work properly after the upgrade. We recommend uninstalling these programs before upgrading. Cancel the upgrade, open Control Panel, and search for "uninstall a program". (Note: Programs marked as * can be safely reinstalled after the upgrade.)

• • iTunes (Please deauthorize computer prior to upgrade)

It's the same so I don't understand. I tried a sfc scan from bootup with DVD but that was unsuccessful as well. I refused to give up last night and finally was able to replace the corrupted file into sys32 folder. I had to copy the file out of the extraction folder on desktop onto the desktop and then into the windows/sys32 folder. For the heck of it I ran another sfc/scannow and it came up with the same problem. I just replaced the file again and I'm in the process of doing another scan. I'll let you know the outcome.

So I again extracted and copied the corrupted file and ran a sfc scan and the same corrupted file error was on the sfc details report. So I extracted again copied again did a restart and ran the sfc scan and got the same error. I really hate to uninstall and reinstall all 346 windows update so I can do an upgrade (that would be my last resort to a clean install) is there any other way to replace the dllhost.exe?
Just found the dllhost.exe is in the syswow64 folder also, should I replace that one as well?

Yeah, I was trying to avoid the inevitable, but I think once I get the new hard drives I'll start with a clean install. Will keep a copy of the clean install externally as well as backing up MUCH MORE FREQUENTLY!

Thanks for all your help, even though we couldn't get it resolved, I greatly appreciate all your efforts!!!

actually tried this earlier using the method described and ( i've done it a number of times) and the text file is always empty. So I'm open to suggestions as to why etc or how to cure it ...

tried both online (in windows) and offline. Even though there is information in the original file the saved text on the desktop is empty. So I've no idea where to go from here tbh ... if i delete the original file cbs.log will it create a new one once another scan has been run?