Consider (or Rufus portable Windows) + legally installed Office 2010 on that USB drive. That is the only true portable method without hacking the software.

It is crucial to understand that Every Portable version available online is a "hack" or a "repack" created by third parties.

A: Most portable versions are pre-activated or modified to bypass the activation screen. However, this constitutes software piracy.

: Offers a modern experience with cloud-synced files that can be accessed on any device via a browser. End of support for Office 2010 - Microsoft Support

Microsoft Office 2010 Portable Download Latest ... - Facebook

If you still decide to download a pre-made version, here are five red flags:

: It included a tool to create a "To Go" USB drive, allowing you to run these apps on other Windows 7 or Vista computers without installation. Limitations