How Do I Do The Equivalent Of Making Subst Mapping Permanent?

Question

Windows 8.1 Pro

Surface Pro 2

I am trying to replace laptops with Surface Pro 2.  The laptops normally have C; and a 407 GB V: partions which the applications expect.  Unfortunately, The C: partition of my Surface Pro 2 cannot be shrunk lower than 241 GB which does not leave enough room for a 407 GB V: partition.

I thought I could get around the problem by creating a folder C:\V and using Subst V: C:\V

This works if I enter the Subst command after each login.  It does not persist across logins.

I then tried using a .reg file:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\DOS Devices]

"V:"="\\?\\C:\\V"

Note: The double back slashes become single ones in the registry.

This created a V: drive but with a ?.  When I tried to open it I got: V:\ is not accessible.  The filename, directory name, or volume label syntax is incorrect.

I also tried:

"V:"="C:\V"

Same results as above.

I then tried using a .reg file:

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Windows\Run]

"V Drive"="subst V: C:\V"

This did nothing.

I can't use Net Use to do the mapping because that requires setting up a share.

Is there anyway to get the equivalent of: Subst V: C:\V

but persistent.

Edit:

I should learn to type.  The correct syntax is:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\DOS Devices]

"V:"="\\??\\C:\\V"

Note the double ?.

That works.

Answer 1

Greetings, saberman

Thank you for reaching out to us, I understand your concern,

I recommend you contact the Microsoft MSDN or Enterprise for

more detail information and additional helps.

Thank you

Best regard.

Answer 2

Perhaps you didn't see my edit:

Edit:

I should learn to type.  The correct syntax is:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\DOS Devices]

"V:"="\\??\\C:\\V"

Note the double ?.

That works.

Answer 3

The "net use" command will do what you want.

Try:> net use V: \%COMPUTERNAME%\C$\V

Answer 4

Use PSubst 3 utility. It is a DOS batch file that maps a drive permanently. Works in every windows version after XP.

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