What is the migration type you use while doing migration?
I use the default option while migrating the windows xp to windows 7. I get all data except office ost or pst file migrated to profile location.
You have to customize USMT to be able to migrate the pst file and ost files are excluded in the default policy of Mirage.
Additional to that there is a know issue with Outlook migration e.g. Outlook 2003 to 2010
Installing KB2405793 on the target machine will solve this issue.
Hope that helps.
1 person found this helpful
FYI on the OST matter
OST are not migrate-able according to Microsoft
"you cannot migrate Outlook OST files with USMT...Outlook team does not support those files moving between computers; they were never designed for portability ... The only supported way to get an OST file is for Outlook to create it."
After the Win7 migration, Outlook will automatically download the data to the OST files. This is done in an efficient way - first the emails in the folder you look at, and in it - the most recent first.
You can try and delete your OST and see the behavior. That's the way it works in all Win7 migrations around the world.