About a week after installing Mavericks on my Mac Pro 2 x 2.8 GHz Quad-Core Intel Xeon... it started playing up. Firstly the dock couldn't be opened then, it dissapeared along with all my desktop folders and icons! Most of the Finder menu dropdowns worked but nothing happened if you selected anything apart from 'New Folder'... which I couldn't open!
I could not boot up in safe mode... it would get to about 25% on the progress bar then crash and restart. Most apps seemed to be unaffected but I couldn't gain access to any of my files and folders. The menu bar started to pixelate and then dissapeared. Sometimes I'd get the menu bar and desktop icons, then they'd dissapear again.
I didn't have Google Drive installed so after reading all the relevant posts, this is what I did:
I had a spare internal drive on which I installed a fresh copy of Mavericks. Everything appeared stable so the first step was to drag all my docs, pics and music (including iTunes) across so everything I needed was safe. This was required because just to make matters worse, my encrypted Time Machine external b/u drive had decided to no longer accept the password... I kid you not! (No I did not forget it I always use the same one)!
I then needed to access my user account Library on the main drive... which as you know is hidden. To do this you need to open a search window to search 'This Mac'. Select 'Other' from the 'Kind' menu dropdown. Click 'System Files....' in the Search Attribute window that opens, then change 'aren't included' to 'are included' in the 2nd menu dropdown. Search for 'Library'... make sure you have the bottom window menu bar visible in order to see the file paths because you'll get about a dozen Libraries show up in the results. Your hidden user Library will be there somewhere.
I then deleted files as follows: (~/Library = hidden user Library.... /Library = System Library)
1) Deleted files ~/Library/Saved Application State/com.apple.finder.savedState
2) Deleted all files in ~/Library/LaunchItems, ~/Library/StartupItems, /Library/LaunchItems and /Library/LaunchDaemons folders
3) Deleted all files in Library/LaunchAgents, Library/LaunchDaemons and Library/StartupItems folders
I don't know if any one individual item or all of them stopped the Finder crash loop? However, after rebooting although all my icons were still missing I noticed I could not only create a new window, I could open it... so the Finder had not crashed? You'll love this bit... I had my TV plugged in to the Mac's secondary display port but it wasn't visible so I opened 'Diplays' in System Prefs and hit 'Mirror Diplays'... hey presto, all my folders and drive icons re-appeared! For some reason Mavericks had decided to shift them all over to the second display's desktop which is weird because... creating a new folder put it where it should be on the main desktop?
Anyway... everything has been stable and working as it should for 3-days now at point of writing. The new encrypted Time Machine back-up is complete and is accepting the password. £90's worth of previous Time Machine Western Digital drive has been diss-assembled, sand blasted and now resides down the local tip where it belongs.
Fingers remain crossed... shame I can't charge Apple for all this unnecassary work?