It sounds like you are trying to update to Internet Explorer 11.
That version is only compatible with Windows 7 and up.
In practical terms, for Microsoft’s consumer operating systems, that means: So if you’re using one of those operating systems and an older version of Internet Explorer, it won’t be long before it stops getting security updates and bug fixes from Microsoft.
If you’re still using a version of Windows that’s older than the ones listed above, then you’re already living on borrowed time — Microsoft ended support for Windows XP in April 2014, for example.
Starting from January 12, 2016, Microsoft will be dropping support for all versions of Internet Explorer other than the recent version for its still-supported operating systems.Generally speaking, there’s really no excuse for not doing this and there’s also very little to lose (but see below).More recent versions of Internet Explorer are altogether better than older ones — they’re more stable, more secure, have more features and have better support for new web standards.And if I run the file manually, then the installations finishes, but IE still isn't updated.But as mentioned - it only happens on some clients, others get updated just fine. [Related story: 7 reasons to upgrade to Internet Explorer 11] What do the changes mean for me?