pgwolfe

I found the msi log. There was a key identified in the log that I could not access. I made the changes, tried to re-install and it worked for some of the updates. I went back into the latest log file to determine why the other updates failed, and now cannot access a different key:
HKEY_LOCAL_MACHINE\Software\Classes\MailFileAtt\CLSID

When I first try to edit the entry, I get the following message:
You do not have permission to view the current permission settings for CLSID, but you can make permission changes.

I received the same error message when altering the first key, but proceeded anyway, and was successful. This time I was not successful.

I tried to change permissions, but received this error:

"Unable to save permission changes on CLSID. Access is denied."

I also have problems with updating other software (i.e. iTunes), due to permissions of registry keys. Could it be due to how I set up Vista initially? I have only one user on this PC, and it is an admin. Is this proper? If so, what do you suggest for the next steps to resolve my update problems?

Can anyone offer assistance?
Thanks.