Temporary folders created during upgrade from Windows XP to Vista and what they mean

If you are upgrading from Windows XP to Windows Vista, then understanding the following information will help to understand the entire Vista upgrade process and scheduling errors. Although Vista provides a safeguard that allows you to revert to previous settings even when something goes wrong in the upgrade process, however, the individual believes that the user's data first back up, the new installation of Vista to install the required applications, and then restore the user's personal data and environment settings is still the safest way to upgrade.

$WINDOWS. ~BT This folder contains the smallest copy of WINDOWS Vista, which is responsible for managing new system settings and migrating files and settings.

$UPGRADE. ~os Setup collects the original operating system information and stores it in this temporary folder so that it can be applied to new Windows Vista after the installation is complete.

$WINDOWS. ~ls This folder contains both the image files (WIM format) and the temporary files used during the upgrade process.

$INPLACE. ~tr in the first phase of the upgrade, the user and computer-specific configuration information in the original system is collected and stored here temporarily.

$WINDOWS. ~q This folder contains the original WINDOWS installation. If the upgrade fails, it automatically rolls back the installation and removes the newly installed mirrors and files and restores the original windows from the saved location. After a successful upgrade, these temporary folders are basically deleted. However $INPLACE. ~tr and $WINDOWS. ~q folders will be preserved to help you recover files and settings that are not migrated correctly.