installing Windows 7 from a USB Hardisk

akramh

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hello, if I asume that a machine can boot from a USB hardisk, is there a way to install windows 7 from a USB harddisk without having to format my USB Hardisk? I read a tutorial for installing windows 7 from a USB Key, and I assume it works with a USB Hardisk too, but since the drive size is 250GB it would be crazy to format all of that to create the ISO image.. would it be possible to create let's say a small 4 GB partition and make it active/primary and write the ISO to that partition, and boot from it? thanks!
 

My Computer

Computer Manufacturer/Model Number
home made
OS
Windows 7 7264x64(main), 7260x86(secendary), XP SP3 Triple Boot
CPU
Intel Core 2 Duo E7400 2.8Mhz
Motherboard
Intel G33 express chipset
Memory
2GB DD2 667
Graphics Card(s)
Intel(R) 82G33 Graphics and Memory Controller Hub
Sound Card
Realtek Built into the G31
Monitor(s) Displays
19"
Screen Resolution
1280x1024
Hard Drives
320GB SATA (Main), 160GB IDE (Backup)
Case
Gigabyte SETTO
Keyboard
Genius
Mouse
Logitech
Internet Speed
1MB Download, 128k Upload
Last edited:

My Computer

Computer Manufacturer/Model Number
Keeps changing - (Custom)
OS
Windows 7 Professional x64
CPU
Intel Core i7 860
Motherboard
Gigabyte GA-P55-UD4P
Memory
4GB DDR3 Mushkin 1600Mhz @ 7-8-7-20
Graphics Card(s)
MSI GTS250 1GB DDR3 Twin Frozr
Sound Card
Onboard realtek
Monitor(s) Displays
Samsung SyncMaster 24" P2450 + Samsung 20" 2033
Screen Resolution
1920 X 1080 and 1600 X 900 (#2 system 1440 X 900)
Hard Drives
Patriot Inferno 120GB SSD + 3 WD Blue 640GB drives
PSU
Corsair 750 HX Modular
Case
Lancool PC-K62
Cooling
Cooler Master TX3 CPU cooler and 4-140mm and 1-120mm case
Keyboard
Gigabyte USB keyboard
Mouse
Microsoft wireless laser mouse 5000
Internet Speed
7 Mb down 1.5 up
Other Info
System #2: AMD Phenom II X6 1055T (Freezer 7 Pro cooler) - Gigabyte 880GMA-UD2H - WD 500GB Black - 9500GT (1GB) 500W OCZ modular PSU - Antec 200 case. System #3 (LapTop) Core 2 Duo T6670 - 320GB 7200RPM HD - 4GB DDR3 RAM.
thanks I think this will work perfectly! +rep for you!
 

My Computer

Computer Manufacturer/Model Number
home made
OS
Windows 7 7264x64(main), 7260x86(secendary), XP SP3 Triple Boot
CPU
Intel Core 2 Duo E7400 2.8Mhz
Motherboard
Intel G33 express chipset
Memory
2GB DD2 667
Graphics Card(s)
Intel(R) 82G33 Graphics and Memory Controller Hub
Sound Card
Realtek Built into the G31
Monitor(s) Displays
19"
Screen Resolution
1280x1024
Hard Drives
320GB SATA (Main), 160GB IDE (Backup)
Case
Gigabyte SETTO
Keyboard
Genius
Mouse
Logitech
Internet Speed
1MB Download, 128k Upload
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