[ubuntu] Dual booting question.

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http://ubuntuforums.org – After awhile of booting to Ubuntu from an external hard drive, i finally decided to try a dual boot. Using the wubi.exe, I installed Ubuntu 12.04 LTS onto my Compaq Presario CQ56 64 bit. Everything went fine until i actually logged into Ubuntu. It is running slow and hangs a lot of the time. I thought that creating a swap file would help. Is there anything i can actually do, short of taking ubuntu off or windows 7, to speed it up? (Hardware)