Microsoft Questions & Answers

Error while installing Windows 7 SP1

Operating SystemsMicrosoftWindows 7

Follow Problem Posted by DragonForce on Feb 20, 2012

When I try to install service pack 1, it gives me: error 0x80073701 ERROR_SXS_ASSEMBLY_MISSING...what means this?

Share it: Post Comment Like 0

« Back to all discussions

Display mode:

not rated

1 leviathan on Feb 20, 2012

Level 4 Try using the System Readiness utility before installing the SP1 update:

Win 7 32-bit: http://go.microsoft.com/fwlink/?linkid=181491
Win 7 64-bit: http://go.microsoft.com/fwlink/?linkid=181492

Also some people over at MS forums suggest connecting your PC to internet even for an off-line installation (downloaded update as an .exe or .iso).

And finally you might want to check out the links below for more info on that problem:

1. http://blogs.technet.com/b/asiasupp/archive/2011/06/20/how-to-resolve-the-error-0x80073701-error-sxs-assembly-missing-when-you-are-installing-a-service-pack-or-hotfix.aspx

2. http://social.technet.microsoft.com/Forums/en-US/w7itproinstall/thread/f876c4e1-6696-48dd-851f-65203dfa9700

Comments (0)

not rated

2 Immortal on Feb 20, 2012

Level 9 Probably means some system files are missing or corrupted... try following the links @leviathan posted and post what happened so that we can help further...

Comments (0)