Fix Frozen App Store Updates and High softwareupdated CPU in OS X
Some users who are trying to install OS X Yosemite 10.10.4 or iTunes 12.2 have discovered the Mac App Store will freeze, with an endless spinning wait cursor and the updates never showing up. Investigating further reveals that a process called ‘softwareupdated’ simultaneously goes haywire and consumes 99% CPU for an indeterminate amount of time if left unattended. If you encounter either of these issues when trying to install the aforementioned updates, there are several possible resolutions to this, but you’ll have to temporarily circumvent the App Store in either case.