windows - How to change default value of AllUsersProfile environment variable. -

i want map default location of alluserprofile other folder.

i following below link no luck far
https://www.pcreview.co.uk/threads/changing-userprofile-and-allusersprofile.4047094/

i believe want registry key
hklm\software\microsoft\windows nt\currentversion\profilelist.

the easiest way is:

1. when installing windows, create temporary user account admin rights.
2. log in temporary account, change default user profile directory, , restart (i believe registry change doesn't take effect until restart);
3. log in temporary account , create "real" / permanent user accounts. make sure @ least 1 of these has admin rights.
4. log in "real" admin account , delete temporary / dummy account created during install.

if have existing profiles want move, becomes more difficult, because

• the registry change not affect existing user profiles.
• iirc cannot move existing profiles while windows running. have boot recovery mode console , use robocopy move user profile folder(s).

i think remember seeing detailed write-up on somewhere. i'll try , find later evening.

---

but caution relocating user profiles after fact problematic.

for 1 thing, public , default user profiles set on c: (or more precisely, system drive) during installation. if move entire profiles folder, there bunch more registry entries related 2 profiles need changed.

further, i've encountered number of programs assume user profile folder c:\users. stupid assumption, cause problems.

you can mitigate of these issues creating symlink or junction c:\users d:\users (or wherever move user profiles to). looking in c:\users should transparently redirected d:\users. gets out of messing per-user folder settings in registry.

it should possible move selected user profiles partition. is, leave c:\users in place, create d:\users folder, , move selected user profiles -- i.e. move c:\users\jane d:\users\jane. you'd still want use robocopy actual move ... , in case need alter profile folder registry settings user being moved ... , recommend creating symlink c:\users\jane d:\users\jane. more work, it's less invasive.

but can tell tried 1 of above approaches on windows 7 machine -- it's been few years, don't remember -- , ended being unable update windows 10 until moved the/my user profile folder c:.
, i'm pretty sure while researching problem found moving users folder officially not supported microsoft. (i'm not clear on whether still support setting alternate folder @ installation time tweaking windows setup scripts.)

<update>
there a similar question several answers on superuser. 1 of answers links this post on lifehacker describes robocopy procedure in detail ... believe that's longer write-up looked @ few years ago.
</update>