I use a 60GB SSD as my primary boot drive on my dekstop and was looking at how I could free up as much space as possible.
I ran Tree Size and noticed that the MSOCache for Office 2010 was 1.2GB.
This is a hidden folder located in C:\MSOCache
I wanted to move this to my D: drive to free up the valuable space from my SSD but after some reading I found it is not possible to move the location of this using office install.
This is where Junction came to my resuce
Junction is a free utility from sysinternals and is availble from http://technet.microsoft.com/en-us/sysinternals/bb896768
Firstly I move the MSOCache using RoboCopy to my D: drive using the follwing command
Robocopy C:\MSOCache D:\MSOCache /MIR
Be sure to run the above as an elevated command prompt.
Using the /MIR switch mirrors the folder contents, security & attributes so the folder remains hidden on the D: drive
After Robocopy ran I deleted the MSOCache folder from the C drive.
The last piece was to create a junction point that links C:\MSOCache to D:\MSOCache and gives the 1.2GB back to my SSD
I downloaded junction and copied the contents to %windir%\system32 and then ran the following
Junction C:\MSOCache D:\MSOCache