To be honest this one is over my head. First off I would have only had the drive I was installing windows 7 to plugged in and an optical drive or flash drive, however you installed 7. I know in xp thier is a way to reasine drive letters but I'm unsure about how in 7. But their are plenty of people smarter than I hear to help you with this.
My Computer
At a glance
Windows 7 ultimate 64 bit / XP Home sp3intel Core 2 Duo E8400 3.0ghz8 gigs 1066 OCZ Fata1tyEVGA GTX 580 Call of Duty Black Ops Edition
- Computer Manufacturer/Model Number
- Self Built
- OS
- Windows 7 ultimate 64 bit / XP Home sp3
- CPU
- intel Core 2 Duo E8400 3.0ghz
- Motherboard
- Asus P5ND bios 1401
- Memory
- 8 gigs 1066 OCZ Fata1ty
- Graphics Card(s)
- EVGA GTX 580 Call of Duty Black Ops Edition
- Sound Card
- Creative Soundblaster Audigy 2zs
- Monitor(s) Displays
- Asus 24in LCD's 2MS X2
- Screen Resolution
- 1920x1080p @60Hz
- Hard Drives
- WD Caviar 500 Black/ WD Caviar 200 Blue
- PSU
- OCZ 700W GameXtreme
- Case
- NZXT Apollo
- Cooling
- Corsair H50 CPU/120mm x3 /60mm x2 /Corsair Dominator Ram
- Keyboard
- Logitech Bluetooth Wireless MX5000
- Mouse
- Logitech Bluetooth Wireless MX1000
- Internet Speed
- Download 19.83 Upload 0.97
- Other Info
- Logitech Z2300 Speakers/ Bose Noise Cancelling Headphones/Avermedia PCI-e Hybrid TV Bravo/Epson NX415 all in one/ 4 Port Powered USB Hub/ LG 10x Bluray Burner /TSST Corp DVDRW External

I fill them up fast just downloading all the great wallpaper here on sevenforums
Now I'm getting sleepy