Problem uninstalling Visual Studio 2008

My Visual Studio 2008 Trial came to an end today, as it is the trial Team system, I have to remove it and install the professional version that I have licensed to. But the running the "Remove/Configure" uninstaller doesn't work, it will always failed and no reason given.

Then I found this tool to remove after googling:

http://msdn.microsoft.com/en-us/vstudio/bb968856.aspx

And further down the road, I hit another error which says:

Error1310. Error writing to file: C:\Config.Msi Access denied

And no matter what I do, setting the permission doesn't work.

Then I figure out that other users are having some problem if they have the software carbonate installed, which is a file backup software.

So I disabled my iDrive services, and voila, it works!

Hope this helps!

regards,
choongseng