I only have the high CPU usage when skydrive is "scanning files". When it's not doing that, the CPU usage goes back to normal.

I am running Windows Live Messenger 2012 on Windows 7 Pro on a Core i5 2.5 Ghz w/ 8 GB RAM.

Up until today, I've had no problems with WLM.  This morning when I log in, I notice that my CPU is spinning up and that WLM is not responding to any clicks or commands.  When I open Task Manager, I saw that WLM was using 33% + of my CPU and at that time was over 800MB of memory usage.  I ended the process and restarted WLM.  I noticed that for about 3 seconds, I could click within the program and it would respond.  However, very quickly it again became unresponsive.  I checked Task Manager again, and saw that again the CPU is spinning around 33% and that the memory usage is climbing at about 5MB a second.

Can anybody assist with this?

msnmsgr.exe has begun freezing and causing high CPU usage and in just the last 30 minutes for four out of ten workstations in our network. When we exit the program (completely closing it) we see CPU usage and memory usage return to normal. In each case, it is Windows 7 64bit workstations, one desktop and three laptops. Each updated with the Update for Windows 7 for x64-based Systems (KB2732059). Not long afterwards this phenomenon began. We have closed the program for now until we find a reason/solution. Any ideas, explanations, or recommendations would be greatly appreciated. 

CHPii 

UPDATE: One computer is Windows Vista and did not run udpates this morning. The other six computers in our network continue NOT to have a problem. We have been using Windows Live Messenger since it became available and have not had this issue until today.