这个还是不做的好:

来源: 于 2013-07-10 20:54:33 [旧帖] [给我悄悄话] 本文已被阅读：次

transfer rate for USB is about 50MB/s; hard drive is around 200 MB/s. if you put page file on USB drive will slow down your computer.

Unless your hard drive is short of space, never put page file on USB.