A permanent solution for the freezing computers is now available. If you feel comfortable applying the fix yourself, the link below contains instructions:
http://www.wellesley.edu/lts/
Or, you can also contact the Computing Help Desk for assistance.
To: Users with College-owned Windows 7 who experienced freezing issue
From: Veronica Brandstrader, LTS, x2171
More info: Daniella ElBialy, LTS, x3973