If you own a genuine, old CD of Office 2007 or Office 2010, Microsoft no longer enforces online activation for those versions. You can install them without a key, but again, they are unsafe for internet usage due to missing security patches. Only use them on an air-gapped computer.
If you find a link promising a free version of Office 2007 or 2010, proceeding with caution is vital. The risks far outweigh the benefit of saving money on a productivity suite. Microsoft Office 2009 Free Download With Product Key
More importantly, , which is illegal and unsafe. Pirated copies often contain viruses, keyloggers, or ransomware. If you own a genuine, old CD of
) that can steal your data, use your PC for mining, or demand ransomware. No Security Updates: If you own a genuine