Start your computer up into
MSDOS mode and in the command
line type:
Format C:
Then press Y
Then install Windows XP
Then when installation is complete
add a Windows 7 theme
Lol only joking
The best way to speed up windows
7 is to disable any unused services
by pressing windows key + R and
typing in Services.msc from there
you can disable any unused
services like: for me I always disable
print spooler as I have no printer,
there are lots of services you can
safely disable you just have to read
or lookup what each does.
Turn off the Aero theme and go
back to good old classic mode
Turn off Paging File in System
Turn off Visual effects in System
Turn off System Restore in System
Don ’t use any background
wallpaper
Defragment your hard disks
regularly
Speed up boot
Windows key + R and type
msconfig
On the boot tab disable any
programs that auto start
Turn on no GUI boot