I hope I am not violating protocol here, but I would like to answer the question that "should have been asked," rather than as-asked.
MikTeX (and TeXLive) may be installed as "portable" versions. For MikTeX, it is here: https://miktex.org/portable and for TeXLive, it is configurable when you execute the downloaded installer (Windows or Linux), see instructions here: https://www.tug.org/texlive/quickinstall.html
When installed as portable, TeX does not need (and should not have) administrative privileges. You may install to a USB device, and carry it around for use on other computers. You may also include custom files in the
texmf-local directory, so they are part of your setup wherever you go. The only potential issue (as far as I know) is if you are using
fontspec to find Open Type fonts in the operating system, rather than within TeX. But in that case, if you have the font licenses, you can place the fonts in your portable
texmf-local fonts directory.
Once you have it loaded and running, you may (if you wish) create a zip archive of the whole thing, and store it somewhere on your main computer. That way, if the portable installation ever fails, you can revert to the zipped backup.
On this user forum, there are many frantic posts about MikTeX being unable to update, download, or run. In nearly every case, that has to do with Windows file permissions. The portable installation avoids those problems.
Works for me!