A P2P client connects you to other people's files and makes selected content available from your computer. Spend time checking both directions: what you are obtaining and what you are offering.
A filename is a claim, not proof
A result can use a familiar title while containing something different. Compare the extension, size and stated format. An unexpected executable deserves particular care, especially when you expected a document, audio file or video.
Show file extensions in your operating system so that a name with several dots does not hide the actual file type. Do not use an attractive title or a high source count as a reason to run an unknown program.
What an eD2K hash establishes
A file link identifies particular bytes using a size and hash. A matching identifier helps the client locate the same file across differently named sources. It does not certify that the contents are harmless, correctly described or authorised for distribution.
Compare a link or checksum with information from the actual publisher when available. A publisher-looking address embedded in a filename is not the same as obtaining that information from the publisher.
Use comments as another signal
Comments can warn that a result is damaged or misleading, but they are written by other people and can be incomplete or wrong. Read them alongside the technical details. If the evidence is uncertain, leave the file unopened while you check.
Keep normal operating-system protections active and scan downloaded files before opening them. No single scan or comment replaces deciding whether you trust the source and understand the file type.
Review the directories you share
Open the shared-files settings and inspect the actual folders and files selected. Avoid sharing a broad personal directory simply because it is convenient. Documents, photographs, backups and application configuration can contain private information.
Give incomplete and completed transfers deliberate locations with enough free space. Check the resulting shared-files list after moving files or changing preferences rather than assuming an old selection is still correct.
Keep configuration and partial files safe
Before an upgrade or a major reconfiguration, stop the client and back up the relevant configuration and temporary files. Store the backup somewhere that is not itself shared. This helps you recover from a mistaken folder change or an unsuccessful import.
Do not delete a partial download just because it is waiting. First inspect source availability and the client status using the slow-download checklist.
Choose content you can legitimately share
The network and its hashes do not establish permission. Use files you created, files the publisher authorises for distribution, or other material you have a right to obtain and share. The setup manual explains the remaining first-run choices.