You cannot downgrade that version in place. You'd need to do a clean installation of the version you desire and you'd need to reinstall your programs (software). If you have the media or can download those applications, you've lost nothing but the time it takes to rebuild your system. You'd need to save your documents, pictures, etc. to other media in order to perform the installation. Nothing is lost that you have backups of.
Currently I am using Windows 7 Enterprise and facing many issues. So I have questions
1. If I replace it with Windows 7 professional, will I loos all my software?
2. If I replace it with Windows XP, will I loos all my software?
Thanks

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