to turn off auto correct options.
office button/word options/proofing/ autocorrect options

to refresh pc we can create refresh image. Otherwise the refreshing process will use
the default cd and all aps will loss.
In order to creat refresh image follow these steps
win + X  give command prompt as administrator.
type this command
recimg Creatimage D:\refreshpc
(refreshpc is the folder which should be created before this.)
Additional information links
http://support.microsoft.com/kb/2748351