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I have an OCZ Agility 3 64GB SSD, and have just downgraded to Windows 7 Professional from Windows 8.1 since I found Windows 8.1 to be too slow when my SSD was filled up.

After seeing that this is an SSD 'problem', I coplied the C:\Users, C:\Program Files, and C:\Program Files(x86) folders to another internal drive (that I formatted just before I did this), and created a symbolic link, linking the original file locations to the new locations on D:\ via cmd on the Windows installation disc:

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I restarted my system and proceeded to log on, and Windows logged me on with a temporary profile, essentially meaning that the symbolic link isn't working properly.

I checked by opening the symbolic link for C:\Program Files, and the appropiate folder on D:\ opened just fine:

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I did some more testing, and it seems like Windows isn't getting the proper permissions it needs to open the symbolic link. I attempted to change this, and had a 'file not found' error:

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I found this question, but turns out that cmd no longer works either, which is strange since I never touched C:\Windows, meaning that I can't test the hardlink solution:

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My question is, is it actually possible to use mklink on C:\Users and C:\Program Files (and the x86 version) to point them to new locations on another drive? If not, how can I have C:\Users, C:\Program Files, and C:\Program Files(x86) on another drive without Windows freaking out?

Edit The C:\Windows\System32\cmd.exe is here! What's going on?? enter image description here

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  • Are you using NTFS junction points? (mklink -j)
    – Jonah
    Commented Sep 11, 2014 at 20:10
  • @Jonah Ah, no. I was using /d. I suppose this matters? :-)
    – AStopher
    Commented Sep 11, 2014 at 20:11
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    The recommended way to copy the Users folder is to boot from the repair drive and use xcopy from its command prompt. This will preserve all the permissions and the SIDs as well. You can try creating a new user and check where the profile is being created though.
    – Vamsi
    Commented Sep 11, 2014 at 20:21
  • @Vamsi That's exactly what I did.
    – AStopher
    Commented Sep 11, 2014 at 20:23

2 Answers 2

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"Users" I know works. The other two directories have been known to cause trouble when moved. Your best option is to always install new software to your secondary drive. You can, however, create individual Junction points (see below) for each folder inside your program files folders.

For directories for use by Windows, you need to use NTFS junction points. This means that windows treats the junction point (shortcut) as the actual directory to which it refers, meaning your data will be somewhere else, but your programs won't see any difference. The command for creating them is:

mklink -j path/to/new/link /path/to/linked/folder

This requires that the original folder be moved or renamed before the link is created.

You'll also want to do this through the Administrator account so that no files are in use while you're moving files around.

Another method (and what I did with my SSD setup) Is to change where windows puts the Users folder. You can do this by changing the registry value HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\ProfilesDirectory to the path to your new users folder. After doing this, I renamed my user profile folder to Jonah_, restarted the computer, logged into the Administrator account and deleted my user account. I then Created an account with exactly the same credentials and logged into it. After Logging in once I went back into the Administrator account, Deleted the new Jonah folder in the Users directory and renamed Jonah_ back to Jonah. A restart for luck and I could log in to my old account and all my settings and files were there.

As for the missing cmd problem, a system repair disc seems like a valid option.

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  • Referring to your note about 'installing software to secondary drive': some installation programs don't let you do this, Google Chrome is a pretty good example (cache files get large pretty quickly), and also the Adobe Suite which always installs the programs to C:\Program Files regardless if you choose to install to another drive or not.
    – AStopher
    Commented Sep 11, 2014 at 20:16
  • Just a headsup that some windows updates including Windows 8.1 from 8 will fail if Users is on a different partition. No real workaround apart from moving the directory back to C:\.
    – Vamsi
    Commented Sep 11, 2014 at 20:18
  • And about the missing cmd.exe problem: the mklink definately made this happen, since the symbolic link is the first thing I did after installing Windows.
    – AStopher
    Commented Sep 11, 2014 at 20:18
  • Thanks. I have the same setup (small SSD) as the OP, and my (messy) method is to just junction point any directories that are getting too big.
    – Jonah
    Commented Sep 11, 2014 at 20:20
  • Please see the edit, the cmd.exe is there, maybe it's because I'm running on a temporary account..
    – AStopher
    Commented Sep 11, 2014 at 20:21
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you can move apps that install automatically to C drive by using a symbolic link (mklink /j). Here are the steps:

  1. uninstall the app
  2. create the directory and use a command like: mklink /j "C:\program files\Microsoft Office" "D:\program files\Microsoft Office"
  3. if you want to test this create the same folder on the D drive otherwise you'll get an error that the folder doesn't exists since it doesn't exists on the "destination"
  4. Install the software. Do note however that the app will install either a 64bit version to "program files" or a 32bit version to "program files (x86)". if you don't know or are unsure you can create a symbolic link to both

Other Notes: * You can not move c:\windows\WinSxS because it contains hard links to files on C: Hard links can not be located on a different drive. * you CAN move c:\windows\installer with a symbolic link. This contains files for reinstallation/uninstallations of updates & programs and can grow to a large size overtime (mine got to 20gb as an example) * I do wonder and look into information if c:\windows\system32 can be moved with a symbolic link...

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