added text regarding alternate user elevation.

[MPagel]

Added instructions for alternate user elevation for UAC system.

Struck "If you prematurely stop the process, UAC will need to be re-
enabled manually." When UAC is disabled the user account ironically
may not have access to re-enable it, so manual re-enabling is a non-
trivial matter. Unless instructions are given, this "help" will just
lead to confusion.

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• tests and/or benchmarks are included
• documentation is changed or added
• commit message follows commit guidelines

[MPagel]

cross-ref pull #23987

[vsemozhetbyt]

Thank you. Just some nits)

[MPagel]

thanks. I THINK both of your edits are now integrated.

[vsemozhetbyt]

сс @nodejs/platform-windows

[joaocgreis]

@MPagel thanks for opening this PR and trying to make this feature better! I'm sorry that this did not work as you expected.

I don't think the way forward here is to add more instructions and workarounds, but to warn the users that this is designed to be simple, not customizable. I opened a PR to address this: #24348

I wouldn't be surprised if there are more corner cases like this. Using Boxstarter and Chocolatey gives us a great base, they install dependencies and solve many issues that could make the installation fail. However, they can only go so far. If a user wants to customize the installation or has custom policies in place like what you described in #23987 (comment), the installers should be used directly.

[Trott]

It seems like perhaps this should be closed. Feel free to re-open (or leave a comment requesting that it be re-opened) if you disagree. I'm just tidying up and not acting on a super-strong opinion or anything like that.