Looks like the money grabbing nazis have stuck their boots in to stop the use of LW or limit its use.
Therefore I strongly recommend you ignore their update suggestions & stay with the version of LW you have. LW 4 does not have force update options, neither do versions 5.5.10 or earlier.
You can still use LW 5 if you downgrade back to LW 5.5.10. Basic instructions are here:
http://www.gnutellaforums.com/359411-post2.html
Recommended is
WireShare.
WireShare 5.6.3 released March 2014 is an upgrade from LimeWire Pirate Edition 5.6.2. WireShare has an inclusive installer for connection file & hostiles. WireShare includes several improvements which fix the Java 7 issue, no deletion of the connection file, & some other bug fixes & improvements.
Installers are found here:
LW 4 or 5 installers for Windows _ and
_ LW 4 or 5 installers for Mac OSX _ and
_ LW 4 or 5 installers for Linux.
. . . . . . . . . . . . . . . . . . LW version nouvelle & mise à jour des liens du 16/09/2011
There is also the *
LimeWire Pirate version * which is based on LW Basic but gives as good as LW Pro. No legal notice on startup. And connects without any problems.
I recommend using the
LimeStart equivalent for MacOSX, Linux or Windows for any LW 5 or LPE version to prevent LW deleting the connection file if LW has not been used for 30 or more days. LimeStart is included with the Windows & MacOSX LW packages we provide download links for. Linux users should download and install the
linux_lwSettings_Connect_LimeStart.tar.gz file which provides connection file and LimeStart before installing LW.
LimeWire Changelog * Note: LW 4 or 5 will not connect without a fresh Gnutella.net file so follow those instructions.
To stop the Legal notice on start window, simply click Library tab & it will vanish.

For LW 4, simply click on the white area or do a search.

The Legal Notice has been replaced with a
'You are Offline' error message, ignore this message. What is important are the color connection bars bottom-left corner of LimeWire's window. The main window originally connected to the official LW site which has been closed down, so that message is irrelevant.

'You are Offline' error message.
. Do not disable file-sharing, do not 'freeload', if nobody were sharing files, you know of course there would be no files to download. If you are a part of the file-sharing community, then share your part and be a respected member of the file-sharing community. Do you never return what you borrow from your friends? Do you never return your partner's kisses and attention? File-sharing can even be a passion!