i work for my money - and i would want my new laptop to perform optimally and last as long as possible.
If that means formatting it to get rid of all the bloatware AND lose my windows license in the process.... i would do it.
Because i know i can get a cheap Win 10 key for $20 online.
Personally, if the bloatware is an issue, i would nuke it, spend another $20 for a new Win 10 key if needed.
If you care about the fan controlling software then check if you can just redownload it from their support page, if not, look into programs like Argus Monitor to see if its compatible