Hi all,
what is the method I can upgrade my win7 32bit to 64bit without loosing any data? Is it possible?
Pls, help. THX
This is offtopic to bitcoin discussion.
You need to reinstall windows so you can't upgrade without formatting your pc.
If you don't want to loose your data then do a backup before upgrading. It is not possible to upgrade without formatting.
All data will be lose. If OP meant for files, just format the drive where windows will be installed. Don't format the partition obviously.
And one thing more for OP, you can try to get assistance from Google search as you will get more answers there than posting here in bitcoin forum.