A file may open successfully near the top of a drive but fail after it is placed inside several nested folders. Record the complete path and the application’s exact error before assuming the document itself is corrupt.

The full path includes the drive or share, every parent folder and the filename. Shortening only the final filename may make little difference when most of the length comes from repeated project and archive folders.

Test a shorter working location

Preserve the original project. Choose a new, short folder path you are authorised to use and copy a representative project there. For example, C:\WorkTest\Project is an illustrative location, not a requirement to move every project onto the system drive.

Keep the project’s internal structure together where files refer to one another. Open the same document with the same application version and repeat the operation that failed. Record both the old and test paths and whether the error changed.

If the shorter copy works, that supports a path-related explanation. It does not prove that every linked file or export destination has been updated, so inspect those dependencies before adopting the location permanently.

Understand why one setting does not fix every app

Microsoft documents a traditional MAX_PATH limit of 260 characters for many Windows interfaces, with exceptions. Longer-path support depends on how the application uses Windows. For the documented modern opt-in, both the system setting and the application’s long-path-aware declaration matter.

Consequently, enabling a policy or registry value is not a universal repair for every program. Windows’ shell interface and filesystem APIs can also handle the same path differently. A file visible in one tool may still be unusable in another.

If the shorter trial solves the task, agree on a concise folder structure and migrate deliberately with backups and link checks. If it does not, keep the unchanged source and investigate the remaining error. Avoid renaming hundreds of files before a small comparison shows that path length is relevant.

Sources: Microsoft path length limits.