Solved Windows 8 is installed on D drive, how to change to C?

pilau

Member
Member
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Hi,

I installed Windows 8 on a separate hard disk plugged into a Windows 7 machine, ultimately of course resulting in a dual boot machine - with 7 on C: and 8 on D:. I added BOOTMGR to the Windows 8 drive (with bcdedit) and have removed the 7 drive leaving only the fresh Windows 8 drive in the PC.

In Windows 8, I can see that the system drive is still D: - 8 doesn't show itself as C: at all, like my Google search results said it should.

I tried changing the drive letter to C from diskmgmt.msc but I get an error saying: "Bad parameter".

Now what's that all about? How to change the system drive into C?

Thanks
pilau, SevenForums member
 

My Computer

System One

  • OS
    Windows 8
Capture.PNG

There you go.

Thanks for the prompt reply, too.
 

My Computer

System One

  • OS
    Windows 8

My Computer

System One

  • OS
    ME, XP,Vista,Win7,Win8,Win8.1
    Computer type
    PC/Desktop
    Other Info
    Notebooks x 3

    Desktops x 5

    Towers x 4
I don't want to be impolite and climb a high horse here but, I find it hard to believe Refreshing will do change any drive letters, because as far as I'm concerned all it does is reinstall Windows with the same settings and user files and apps intact. It's supposed to avoid this exact kind of modifications to the system.

I will try the startup repair, though. See what's the story there.
 

My Computer

System One

  • OS
    Windows 8
It can't be done. You'll have to do a Clean Install and use the Advanced Options to format and re-letter the drive during installation.
 

My Computer

System One

  • OS
    Win 7 Ult SP1 + Win 10 Pro - (x64)
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Alienware® ALX X58
    CPU
    Intel® Core i7-975 Extreme 3.86 GHz 8MB Cache
    Motherboard
    ASUS P6T Deluxe V2 Socket 1366 Core i7, Dual Triple Channel DDR3 Mem
    Memory
    24GB Corsair Vengeance DDR3 SDRAM at 1600MHz - 6 x 4096MB
    Graphics Card(s)
    1792 MB NVIDIA® GeForce® GTX 295/Hauppauge HVR2250 TV Tuner
    Sound Card
    Onboard Soundmax® High definition Sound
    Monitor(s) Displays
    Samsung XL2370 LED
    Screen Resolution
    1920 X 1080P
    Hard Drives
    2 X 500gb SATA
    1 X 1TB SATA
    1 X 3TB external eSATA
    (Non-RAID)
    PSU
    Alienware® 1200 Watt Multi-GPU
    Case
    Alienware® P2 ALX Chassis with AlienIce 3.0 Video Cooling
    Cooling
    Alienware® High-Perf. Liquid Cooling + Acoustic Dampening
    Keyboard
    Microsoft® Wireless Entertainment 8000 + Logitech® G15 Wired
    Mouse
    Microsoft® Wireless Laser 8000 + Logitech® G9 Wired
    Internet Speed
    1tbs
    Other Info
    Using non-RAID on purpose as I find it too fussy and temperamental.
Well the only other way I can think of is to put the 7 drive back in and change its drive letter from within 8. Then somehow boot into 7 and do the same for 8....if you get my drift. Simply speaking, you can't change a system drive letter if that's the only system you have.
 

My Computer

System One

  • OS
    Win 7 Ult SP1 + Win 10 Pro - (x64)
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Alienware® ALX X58
    CPU
    Intel® Core i7-975 Extreme 3.86 GHz 8MB Cache
    Motherboard
    ASUS P6T Deluxe V2 Socket 1366 Core i7, Dual Triple Channel DDR3 Mem
    Memory
    24GB Corsair Vengeance DDR3 SDRAM at 1600MHz - 6 x 4096MB
    Graphics Card(s)
    1792 MB NVIDIA® GeForce® GTX 295/Hauppauge HVR2250 TV Tuner
    Sound Card
    Onboard Soundmax® High definition Sound
    Monitor(s) Displays
    Samsung XL2370 LED
    Screen Resolution
    1920 X 1080P
    Hard Drives
    2 X 500gb SATA
    1 X 1TB SATA
    1 X 3TB external eSATA
    (Non-RAID)
    PSU
    Alienware® 1200 Watt Multi-GPU
    Case
    Alienware® P2 ALX Chassis with AlienIce 3.0 Video Cooling
    Cooling
    Alienware® High-Perf. Liquid Cooling + Acoustic Dampening
    Keyboard
    Microsoft® Wireless Entertainment 8000 + Logitech® G15 Wired
    Mouse
    Microsoft® Wireless Laser 8000 + Logitech® G9 Wired
    Internet Speed
    1tbs
    Other Info
    Using non-RAID on purpose as I find it too fussy and temperamental.
I see. Very well, I guess I'll just drop it :)

Thanks anyway guys. Knew I could rely on a quick and professional answer on these forums.
 

My Computer

System One

  • OS
    Windows 8
OK, good luck ;-)
 

My Computer

System One

  • OS
    Win 7 Ult SP1 + Win 10 Pro - (x64)
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Alienware® ALX X58
    CPU
    Intel® Core i7-975 Extreme 3.86 GHz 8MB Cache
    Motherboard
    ASUS P6T Deluxe V2 Socket 1366 Core i7, Dual Triple Channel DDR3 Mem
    Memory
    24GB Corsair Vengeance DDR3 SDRAM at 1600MHz - 6 x 4096MB
    Graphics Card(s)
    1792 MB NVIDIA® GeForce® GTX 295/Hauppauge HVR2250 TV Tuner
    Sound Card
    Onboard Soundmax® High definition Sound
    Monitor(s) Displays
    Samsung XL2370 LED
    Screen Resolution
    1920 X 1080P
    Hard Drives
    2 X 500gb SATA
    1 X 1TB SATA
    1 X 3TB external eSATA
    (Non-RAID)
    PSU
    Alienware® 1200 Watt Multi-GPU
    Case
    Alienware® P2 ALX Chassis with AlienIce 3.0 Video Cooling
    Cooling
    Alienware® High-Perf. Liquid Cooling + Acoustic Dampening
    Keyboard
    Microsoft® Wireless Entertainment 8000 + Logitech® G15 Wired
    Mouse
    Microsoft® Wireless Laser 8000 + Logitech® G9 Wired
    Internet Speed
    1tbs
    Other Info
    Using non-RAID on purpose as I find it too fussy and temperamental.
It can, in fact, be done. However, you probably won't like the results.

The reason is that the registry is filled with references to drive letters, and those locations will no longer be correct and lots of stuff will give you problems. However, if you insist on doing it, you can boot with your Windows 8 install DVD, and when you get to the first screen press Shift-F10, then run diskpart.exe and change the drive letter via command line.

Assign, change, or remove a drive letter: Storage Services; Local File Systems (read the second section)
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    CPU
    Intel i7 3770K
    Motherboard
    Gigabyte Z77X-UD4 TH
    Memory
    16GB DDR3 1600
    Graphics Card(s)
    nVidia GTX 650
    Sound Card
    Onboard Audio
    Monitor(s) Displays
    Auria 27" IPS + 2x Samsung 23"
    Screen Resolution
    2560x1440 + 2x 2048x1152
    Hard Drives
    Corsair m4 256GB, 2 WD 2TB drives
    Case
    Antec SOLO II
    Keyboard
    Microsoft Natural Ergonomic Keyboard 4000
    Mouse
    Logitech MX
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