Copy the missing files from a good machine.Ģ. For example, in the above CBS log, you can see the files for update KB2447568 are missing. Review the cbs logs and uninstall the patches which were missing assemblies and reboot the server.įor advanced customer, you can manually examine which files are missing. Uninstall the unnecessary language packs.Ĥ. Examine the language packs installed on the system. From the command line run the command sfc /scannowģ. Run the checksur.exe (System Update Readiness Tool) tool.Ģ. To resolve the issue please try the followingġ. Http:/ Opens a new window / / 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.aspxĮrror 0x80073701 is ERROR_SXS_ASSEMBLY_MISSING, it means there are some system files are missing, which caused the update installation failure. Is this what's causing it not to successfully install that role service? There are some more but they all reference the Windows servicing failed to blah, blah, blah. Windows Servicing failed to complete the process of setting package KB979099 (Update) into Installed(Installed) state Windows Servicing failed to complete the process of setting package KB2685939 (Security Update) into Installed(Installed) state Windows Servicing failed to complete the process of setting package KB2690533 (Security Update) into Installed(Installed) state Windows Servicing failed to complete the process of setting package KB2676562 (Security Update) into Installed(Installed) state I checked the system logs and found some 4375 event ID errors. The system update readiness came back with this: I ran sfc /scannow which came back clean. The referenced assembly could not be found. I attempted to install file server resource manager on a server 2008 sp2 server and got the following error: Attempt to install File Server Resource Manager failed with error code 0x80073701.

Windows update 0x80073701