How to disable Windows Vista's Sync Center on Lenovo laptops is as follows:
1. Click "Start --> All Programs --> Accessories --> System Tools --> Task Scheduler". Select "Task Scheduler Library --> Microsoft --> Windows --> MobilePC" on the left side of the opened "Task Scheduler" window, and double-click the "TMM" task in the middle window.
2. Select "Trigger" in the pop-up window and double-click "When logging in" below. Then remove "Enable" in the lower left corner of the pop-up window. Once confirmed.