The update "Mac OS X 10.7.3 Supplemental Update" can't be installed.

Question

I am getting failures on all software updates from apple, can anyone provide advice on how to overcome this problem please

Answer 1

Linc
here are the records you asked for;
Apr  4 21:52:12 Martyns-MacBook-Air installd[447]: PackageKit: Extracting file://localhost/Library/Updates/041-4265/MacOSXUpd10.7.3Supp.pkg (destination=/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/Cleanup At Startup/PKInstallSandbox-tmp/Root, uid=0)
Apr  4 21:52:12 Martyns-MacBook-Air installd[447]: PackageKit: Shoving /var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/Cleanup At Startup/PKInstallSandbox-tmp/Root (1 items) to /
Apr  4 21:52:12 Martyns-MacBook-Air installd[447]: PackageKit: Executing script "postinstall" in /private/tmp/PKInstallSandbox.h5P9oL/Scripts/com.apple.pkg.update.os.10.7.3.sup p.bxN5LP
Apr  4 21:52:14 Martyns-MacBook-Air installd[447]: PackageKit: Install Failed: Error Domain=PKInstallErrorDomain Code=112 "An error occurred while running scripts from the package “MacOSXUpd10.7.3Supp.pkg”." UserInfo=0x7fe86292e530 {NSFilePath=postinstall, NSURL=file://localhost/Library/Updates/041-4265/MacOSXUpd10.7.3Supp.pkg, PKInstallPackageIdentifier=com.apple.pkg.update.os.10.7.3.supp, NSLocalizedDescription=An error occurred while running scripts from the package “MacOSXUpd10.7.3Supp.pkg”.} {
              NSFilePath = postinstall;
              NSLocalizedDescription = "An error occurred while running scripts from the package \U201cMacOSXUpd10.7.3Supp.pkg\U201d.";
              NSURL = "file://localhost/Library/Updates/041-4265/MacOSXUpd10.7.3Supp.pkg";
              PKInstallPackageIdentifier = "com.apple.pkg.update.os.10.7.3.supp";
Apr  4 21:52:15 Martyns-MacBook-Air Software Update[451]: Releasing Lock: 501, 441, 0
Apr  4 21:52:15 Martyns-MacBook-Air Software Update[441]: Error: An error occurred while running scripts from the package “MacOSXUpd10.7.3Supp.pkg”. (PKInstallErrorDomain code 112)