Hi there and welcome
Yes you will lose the programs and need to reinstall them if they are replacing the hard drive.
The new products will work again on your old computer but no need to purchase them again. If you received them on a Disk, you just put the Disk in the computer and install them from there.
If you purchased them online, then follow the steps on my link below to redownlaod them again.
If you would like any additional information or assistance, please do not hesitate to let me know.
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