An extraction failure can mention insufficient space even when the chosen destination appears to have plenty. Before deleting files, record how you initiated the extraction. Dragging from an archive window into File Explorer can follow a different path from choosing an explicit extraction destination.

Dragging into Explorer first extracts to temporary storage; Explorer then copies to the destination. The 7-Zip FAQ recommends using Extract to select the destination directly.

Use that distinction to investigate the route, not to justify emptying an unfamiliar temporary directory. Other applications may be using files there, and deleting them does not prove that the next extraction will follow the intended path.

Establish what the destination must contain

Identify the archive, its expected top-level folders and the location authorised for the result. Inspect the listed uncompressed contents when planning capacity; the archive's compressed size alone is a poor description of the material you expect to receive.

Choose a new, empty destination folder whose name distinguishes this attempt. Avoid repeating a failed extraction into a mixture of partial files and an older accepted version. Preserve those existing files until you know which attempt produced them.

For a small harmless rehearsal, select the archive contents and use Extract, entering the intended destination explicitly. Read the displayed path before starting. After completion, compare the resulting folder structure with the archive listing rather than accepting the absence of an error as the only evidence.

Separate route success from content acceptance

Repeat the required extraction using the confirmed route and review any reported errors. If space is still insufficient, record the actual destination, requested contents and failure message. Direct extraction cannot make an undersized destination large enough.

Check a representative large file and one file from a nested folder. Confirm that the application which needs the extracted material can locate the expected paths. Keep the source archive available until this acceptance is complete.

The useful support record states which route failed, which route was tested and where the accepted contents now reside. That is more actionable than saying the computer needed a general cleanup, and it avoids turning a temporary staging problem into unrelated deletion work.

Sources: Official documentation.