If you own a valid and specifically need to reinstall this version for legacy file compatibility, here is how to handle the download safely:
There is no official help desk or troubleshooting available from Microsoft for this version.
If you have the original installation disc , creating an ISO image of that disc is the safest way to ensure you have a "verified" and clean version of the software. Modern Alternatives to Visio 2007
Tools like Lucidchart or draw.io (Diagrams.net) can open many .vsd files and offer similar functionality for free in a browser.