In an aside, LeBlanc repeated a warning Microsoft first issued in early April, that users running Windows 7 RC must do a "custom" install when, or if, they move to the final product. "Note that 'in-place' (or direct) upgrades from the Windows 7 RC to RTM will not be supported," LeBlanc said. "You will be required to do a Custom installation (aka 'clean install').
A custom, or clean, install requires users to back up or transfer data and settings to an external drive or flash drive, install Windows 7 RTM -- which effectively overwrites the hard drive -- then restore their data, recreate settings throughout Windows and reinstall all applications.
It's unclear whether users will be able to sidestep the custom install and instead do an in-place by modifying the "cversion.ini" file, as they were able to do when they upgraded from beta to RC.
According to LeBlanc, Microsoft will break the news of reaching RTM, whenever that is, by posting to the Windows blog. "When Windows 7 hits RTM, it will be announced here," he promised.