Windows 10: System Path variable length problem

Discus and support System Path variable length problem in Windows 10 Support to solve the problem; I was having a problem with Apple's SyncServer.exe (part of iTunes). It was choking on the length of my system PATH environment variable (2388 bytes),... Discussion in 'Windows 10 Support' started by perdrix, Nov 22, 2016.

  1. PERDRIX
    perdrix Win User

    System Path variable length problem


    I was having a problem with Apple's SyncServer.exe (part of iTunes). It was choking on the length of my system PATH environment variable (2388 bytes), so I temporarily hacked it below 2047 bytes, and it worked OK.

    BUT I couldn't use Control panel/System/Advanced Systems Settings to restore it to what it was previously as that complained that the variable was too long.

    To quote MSDN:

    Luckily I was able to restore my PATH by using regedit to change the variable Path stored at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment which doesn't appear to suffer from the problem of the control panel.

    Is there any chance this will be fixed (ho ho).

    Dave

    :)
     
    perdrix, Nov 22, 2016
    #1
  2. PERDRIX52
    perdrix52 Win User

    Cannot edit long Path Environment variable

    I was having a problem with Apple's SyncServer.exe (part of iTunes). It was choking on the length of my system PATH environment variable (2388 bytes), so I temporarily hacked it below 2047 bytes, and it worked OK.

    BUT I couldn't use Control panel/System/Advanced Systems Settings to restore it to what it was previously as that complained that the variable was too long.

    To quote MSDN: The maximum size of a user-defined environment variable is 32,767 characters. (omitted) Starting with Windows Vista and Windows Server 2008, there is no technical limitation on the size of the environment block.

    Luckily I was able to restore my PATH by using regedit to change the variable Path stored at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment which doesn't appear to suffer from the problem of the control panel.

    Is there any chance this will be fixed (**** ****).

    Dave
     
    perdrix52, Nov 22, 2016
    #2
  3. ROHN007
    Rohn007 Win User
    Attempts to get into the System Protection menu of System Properties fails.

    I haven't been able to find a good answer for this error. It is not likely a RAM or HD space issue. It is more likely a hard coded limit in a variable. Often related to path length limits of 256 char.

    On the off chance it is a RAM issue, have you tried restarting the computer since encountering the problem, and retrying the process.
     
    Rohn007, Nov 22, 2016
    #3
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System Path variable length problem

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