How to remove Windows Update Number KB2973201
1. Control panel » Programs and features
2. View installed updates (on the left of the screen)
3. Uninstall « security update for Microsoft windows (KB2973201) and restart
Note : Be careful, windows try to reinstall this security update.
Please let me know if you have any questions on the same.Further information can be found here:
http://communities.bentley.com/products/microstation/w/microstation__wiki/15905.toolboxes-disappear#pi19988=1