If you’re upgrading from Windows 8 CP to Window 8 RC, you can’t upgrade in place. All your programs are wiped and dumped in Windows.old
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
If you’re upgrading from Windows 8 CP to Window 8 RC, you can’t upgrade in place. All your programs are wiped and dumped in Windows.old