Using Parallel Instead Of BootCamp Question

Hi,

I have a mac mini 2015 edition. 8gig ram with 1tb hard disk. I am running win 7 32bit bootcamp. I want to upgrade to win10 64 bit.

Instead of reinstalling, can I purchase and run Parallel VM mode for windows 10 and then access the bootcamp win 7 drive normally as a hard disk partition to extract whatever files I want to migrate?

I know the programmes need to be reinstalled. I just what to move the outlook plist files, pdf files and my document folder. My main intention is to run windows 10 64 bit and then I can still retain my bootcamp drive as a backup for my working files. If I forgot to migrate certain files, then I can still go back and extract those files.

Need some clarification on this.

Thanks for reading