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DevOps/Windows/Maximum Path Length Limitation.md
2025-10-06 10:23:45 +02:00

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Maximum Path Length Limitation

In the Windows API (with some exceptions discussed in the following paragraphs), the maximum length for a path is MAX_PATH, which is defined as 260 characters. A local path is structured in the following order: drive letter, colon, backslash, name components separated by backslashes, and a terminating null character. For example, the maximum path on drive D is "D:\<some 256-character path string><NUL>" where "<NUL>" represents the invisible terminating null character for the current system codepage. (The characters < > are used here for visual clarity and cannot be part of a valid path string.)

Powershell

Run the following Powershell command with elevated permissions.

New-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Control\FileSystem"
-Name "LongPathsEnabled" -Value 1 -PropertyType DWORD -Force

Registry file .reg

Create a .reg file with the following content, then import it into the registry.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem]
"LongPathsEnabled"=dword:00000001