Most file-sharing advice is written for the sender. This one is for the person who got the link, clicked it, and is now staring at an error page or a download that never starts.

Go through these roughly in order. The first few cover most cases.

1. The link has expired

Many sharing links are temporary on purpose. Transfer services commonly delete files after anywhere from 24 hours to a couple of weeks. If you're opening the link days after it was sent, this is the most likely explanation.

Typical signs: a "not found" or "file no longer available" message, or an error page from a storage server.

Fix: ask the sender to upload it again. There's no way to recover an expired file from the receiving end.

2. The link got broken in transit

Long links sometimes get mangled:

An email client wraps the link across two lines, and only the first half is clickable.
A trailing period or bracket gets included in the link when it shouldn't be.
Copying from a PDF or a chat app adds a hidden space or line break.
Special characters in a file name get encoded differently along the way.

Fix: instead of clicking, carefully copy the whole link and paste it into the browser's address bar. Compare the end of the link with what the sender sent. If it still fails, ask them to send it again, ideally on its own line with nothing directly after it.

3. Your work network blocks it

Company and school networks often block file-sharing sites as a security policy. You might see a branded "this site is blocked" page, a timeout, or the download starting and then failing.

Fix: try the link on your phone using mobile data, not office Wi-Fi. If it works there, the network is the problem. Ask your IT team whether there's an approved way to receive files, or have the sender use a service your company allows. Don't try to get around the block without asking. Those rules usually exist for a reason.

4. The browser is blocking the download

Browsers warn about or block certain downloads, especially:

Executable files (.exe, .msi, .dmg, .apk)
Scripts and macros
Files that are rarely downloaded, which browsers treat with more suspicion
Downloads on an insecure (http) page

In Chrome and Edge, a blocked download often appears in the download bar or the downloads page (Ctrl+J) with a warning and an option to keep it anyway.

Fix: only override the warning if you know the sender and were expecting that exact file. If an unexpected program arrives from someone you barely know, the warning is doing its job.

5. Antivirus removed it

Sometimes the download finishes and the file simply vanishes, or the archive turns up empty. Antivirus software may have quarantined it. Check your antivirus history or Windows Security → Virus & threat protection → Protection history.

False positives do happen, especially with zipped installers and scripts. But again, if you weren't expecting the file, leave it in quarantine and check with the sender first.

6. The download worked, but you can't find it

This is very common, especially on phones.

Windows and Mac: check the Downloads folder, or press Ctrl+J (Cmd+Shift+J in some browsers on Mac) to see the browser's download list.
iPhone: Safari saves to the Files app → Downloads by default. Tap the download icon in Safari's address bar to see recent ones.
Android: open the Files app and look in Downloads, or pull down the notification shade right after downloading.

7. It downloaded, but won't open

Usually this means you don't have an app for that file type.

.7z or .rar: needs an archive tool such as 7-Zip on Windows, or Keka or The Unarchiver on Mac.
.heic: an iPhone photo format. Windows may need the HEIF Image Extensions from the Microsoft Store.
.mov or .mkv: try VLC, which plays nearly everything.
Design or CAD files: may require the specific software they were made in. Ask the sender for a PDF export.

If an archive says it's damaged, the download may have been cut short. Delete it and download again on a stable connection.

8. It's very slow

Large files take time, especially on mobile or busy Wi-Fi. If a 2GB download is crawling, try a wired connection, pause other downloads and streaming, and avoid letting the device sleep. If it fails partway, most browsers offer a resume or retry option in the downloads list.

What to tell the sender

If nothing works, give the sender something useful to go on. "The link doesn't work" leads to a lot of back and forth. Something like this gets it sorted in one reply:

"I'm getting a 'file not found' page on the link from Tuesday. I tried it on my phone too. Could you re-upload it?"

Someone Sent You a Download Link and It Won't Work. Try This.