Where did you purchase these? Retail? VLK?

If you have a volume license key, you can download directly through the portal.

An example of phrasal verbs you might want to introduce together are back down, back up, and back out because they all start with the same word and include a direction related word. List of verbs. A variety of practice activities are also important so that students can demonstrate their thorough understanding of the material. Another approach may be to choose phrases that use the same second word as they may be less easily confused.

You can still download the ISOs direct from Microsoft, this link should have you covered, unless you purchased this as a key-code only (or if it was pre-installed) then use this link. Obviously, you'll need to provide a valid key for these downloads to work.

Don't attempt to source your files from sources other than Microsoft, it's not worth the risk. (and as an aside, anyone who posts a link to a non-microsoft source in this thread will have their post taken hostage, beaten brutally, and then deleted, Microsoft provides the files no other source is needed)