This question already has an answer here:

When downloading the iso it downloads normally for awhile displaying that i have a few hours to wait and then randomly jumps to complete. Upon attempting to burn the iso to USB to install the pendrive program claims numerous file errors and then completes the format of my usb. when i attempt to boot from the usb during post it either comes up with nothing and forces me to reboot my laptop or comes up that i'm missing files and that the boot cannot continue. can anyone help me with this issue?

marked as duplicate by Braiam, Seth, Warren Hill, Kevin Bowen, Eric Carvalho Sep 30 '13 at 16:00

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.


It sounds like a browser error. Its happened to me as well. The iso download is corrupted (missing files) I just go to my browser options and clean out all the history,etc then close and reopen the browser. That has always cleared up the problem. Also I find that I much prefer Unetbootin for burning the iso to a flash drive. Just point it to the iso and check that it has properly identified your usb and you are good to go. You can get Unetbootin from the software manager Oh, if you are running a slow computer then try to just let the iso download, don't open other pages, etc while it is downloading! Hope this helps you


To check if your Download was complete and no errors occurred, you can compare the MD5 checksum of the downloaded file with the checksum computed for the file on the server, as displayed in the official checksum list. If the MD5sum is different, something went wrong with your download and you should redownload the ISO.

If for some reason your downloads keep failing and you think it's the servers fault or a bad undersea cable, you can instead use a different mirror (see the list of CD-image mirrors).

If the download keeps failing and you suspect that your own internet connection is not stable, (and you don't mind giving some bandwidth for upload,) you can use bittorrent downloads. Bittorrent has error detection for partial downloads [citation needed] and therefore automatically redownloads faulty blocks before marking a download as finished.

Not the answer you're looking for? Browse other questions tagged or ask your own question.