 | | Welcome to Windows 7 Forums. Our forum is dedicated to helping you find solutions with any problems, errors or issues you are experiencing with Windows 7. The Windows 7 forum also covers news and updates and has an extensive Windows 7 tutorial section that covers a wide range of tips and tricks. | Windows 7 - Can't change hard drive letter to needed letter
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11-16-2009
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#1 | | windows 7 x64 Home Premium |
Can't change hard drive letter to needed letter I lost my Event Viewer, and had to do a repair installation to fix it. Unfortunately, during the repair install, Windows decided to rename my second HD as the D: drive... it was K: before that. Now I cannot access any of my docs, pictures, music, or videos through the normal means... they don't show up in libraries or explorer, and apps like Restorator and Sure Thing (CD labeler) cannot find them. I think that means the paths are broken..?
It won't allow me to rename the HD back into K: (it's not listed as available). I can access the data by clicking Computer > D, and I can see the data is there, but its unusable as of now. Any ideas?
Last edited by stevieray; 11-16-2009 at 10:42 PM..
Reason: Removed superfluous info
| My System Specs | | System Manufacturer/Model Number me / #1 OS windows 7 x64 Home Premium CPU intel q6600 Motherboard gigbyte ga ep45 ud3l Memory g.skill 8gb ddr2 1066 (pc2 8500) Graphics Card evga geforce 9800 gtx 512 mb Screen Resolution 1680 x 1050 Case smilodon (yes, t'was the pretty blue lites that got me!) Hard Drives wd caviar black 500 gb
wd caviar black 1tb
wd elements 1tb external hd x2 |
11-16-2009
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#2 | | Windows 7 Ultimate x64 SP1 |
Hello Stevie,
To be safe, you should create a restore point before doing this in case you make a mistake and need to use it to do a system restore. Drive Letter - Add, Change, or Remove in Windows 7 1. If the K letter is not being used by another internal drive, then you can open regedit and navigate to: HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices 2. In the left pane, Take ownership (step 2 in Option Two of METHOD TWO) of the registry key MountedDevices and "Allow" yourself "Full Control" of it as well. 3. In the right pane of MountedDevices, right click on \DosDevices\K: and click on Delete and OK. 4. Restart the computer to apply. You should now be able to change the second hard drive letter to K.
Hope this helps,
Shawn
Last edited by Brink; 09-25-2011 at 11:59 AM..
Reason: added tutorial link
| My System Specs | | System Manufacturer/Model Number Self built custom OS Windows 7 Ultimate x64 SP1 CPU Intel i7-980X 3.3 Ghz (3.48 Ghz OC'd) Motherboard ASUS P6X58D Premium Memory 12 GB (2GBx6) DDR3 PC3-16000 2000 MHz Kingston HyperX Graphics Card Sapphire HD5870 Eyefinity 6 2GB Sound Card Realtek HD Audio ALC889 Integrated Chip Monitor(s) Displays 3x 27" Asus VE278Q Screen Resolution 1920x1080 Keyboard Logitech Cordless Desktop MX 5500 Revolution Mouse Logitech Cordless Desktop MX 5500 Revolution PSU OCZ Series Gold OCZZ1000M 1000W Case Corsair Obsidian 800D Cooling Thermalright Ultra 120 Extreme Copper CPU heat sink w/120 MM Hard Drives 160GB OCZ RevoDrive X2
** 2 x 1TB Samsung HDD HD154UI SATA Internet Speed 50 Mb/s Download and 2 Mb/s Upload Other Info Microsoft LifeCam Cinema
** Lite-On iHBS212 12x BD Writer
** Samsung CLX-3175FW Printer
** Netgear WNDR3800 Router
** Motorola SBG6580 Cable Modem
** 2x APC Back-UPS XS 1500 |
11-16-2009
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#3 | | windows 7 x64 Home Premium |
Thanks!
Oh nice... just to make things more fun, the "take ownership" context menu shortcut doesn't work in regedit... lovely. | My System Specs | | System Manufacturer/Model Number me / #1 OS windows 7 x64 Home Premium CPU intel q6600 Motherboard gigbyte ga ep45 ud3l Memory g.skill 8gb ddr2 1066 (pc2 8500) Graphics Card evga geforce 9800 gtx 512 mb Screen Resolution 1680 x 1050 Case smilodon (yes, t'was the pretty blue lites that got me!) Hard Drives wd caviar black 500 gb
wd caviar black 1tb
wd elements 1tb external hd x2 |
11-16-2009
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#4 | | Windows 7 Ultimate x64 SP1 |
Nope, you will need to do it manually using step 2 in Option Two of METHOD TWO in the Take Ownership tutorial link above. | My System Specs | | System Manufacturer/Model Number Self built custom OS Windows 7 Ultimate x64 SP1 CPU Intel i7-980X 3.3 Ghz (3.48 Ghz OC'd) Motherboard ASUS P6X58D Premium Memory 12 GB (2GBx6) DDR3 PC3-16000 2000 MHz Kingston HyperX Graphics Card Sapphire HD5870 Eyefinity 6 2GB Sound Card Realtek HD Audio ALC889 Integrated Chip Monitor(s) Displays 3x 27" Asus VE278Q Screen Resolution 1920x1080 Keyboard Logitech Cordless Desktop MX 5500 Revolution Mouse Logitech Cordless Desktop MX 5500 Revolution PSU OCZ Series Gold OCZZ1000M 1000W Case Corsair Obsidian 800D Cooling Thermalright Ultra 120 Extreme Copper CPU heat sink w/120 MM Hard Drives 160GB OCZ RevoDrive X2
** 2 x 1TB Samsung HDD HD154UI SATA Internet Speed 50 Mb/s Download and 2 Mb/s Upload Other Info Microsoft LifeCam Cinema
** Lite-On iHBS212 12x BD Writer
** Samsung CLX-3175FW Printer
** Netgear WNDR3800 Router
** Motorola SBG6580 Cable Modem
** 2x APC Back-UPS XS 1500 |
11-16-2009
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#5 | | |
Go to control panel - administrative tools - computer management -disc management.
Assign a different drive letter to the device using K:. Then change the current D: to K: and all should be well.
Luck- | My System Specs | | System Manufacturer/Model Number Home Grown OS Windows 7 Ultimate (64) CPU i7-2600K Motherboard Asus P8P67-M Pro Memory G.SKILL Ripjaws X Series 8GB (2 x 4GB) Graphics Card ATI 5750 Sound Card On-Board Monitor(s) Displays LG W2486L Screen Resolution 1920X1080 PSU Zalman ZM770-XT 770 Watts Case Antec 180 mini Cooling Cooler Master V8 Hard Drives Intel X-25M 80 Gig SSD | Intel X-25M 160 Gig SSD | WD Black 500MB - External eSata Internet Speed 15MB - Cable Other Info Sissy OC - 4.6 @ 1.3175 24/7 | 18' Idle - 55' Load |
11-16-2009
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#6 | | windows 7 x64 Home Premium |
YAY! It worked! I have my K: drive back, and I can access all of my stuff!
I couldn't figure out the correct file path for the command prompt method to take ownership, so I just granted myself full privileges and skipped the "take ownership" step... and it worked anyway! Although I might have inadvertently already taken ownership earlier... as I was trying to fix this problem before I turned to the forum... so that step might not have been skipped.
Thanks for the help! | My System Specs | | System Manufacturer/Model Number me / #1 OS windows 7 x64 Home Premium CPU intel q6600 Motherboard gigbyte ga ep45 ud3l Memory g.skill 8gb ddr2 1066 (pc2 8500) Graphics Card evga geforce 9800 gtx 512 mb Screen Resolution 1680 x 1050 Case smilodon (yes, t'was the pretty blue lites that got me!) Hard Drives wd caviar black 500 gb
wd caviar black 1tb
wd elements 1tb external hd x2 |
11-16-2009
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#7 | | windows 7 x64 Home Premium |

Quote: Originally Posted by win7clutz Go to control panel - administrative tools - computer management -disc management.
Assign a different drive letter to the device using K:. Then change the current D: to K: and all should be well.
Luck- Unfortunately, I couldn't do it that way. There was no device with the letter K: listed in disc management, yet that letter was also not listed as available under "change letter of drive". I guess that during the repair install, it recognized the second HD as K:, locked out the use of that letter, and then renamed the drive to D:. Brink's registry fix forced the letter K: to be freed up so I could rename my data disc back to K:. | My System Specs | | System Manufacturer/Model Number me / #1 OS windows 7 x64 Home Premium CPU intel q6600 Motherboard gigbyte ga ep45 ud3l Memory g.skill 8gb ddr2 1066 (pc2 8500) Graphics Card evga geforce 9800 gtx 512 mb Screen Resolution 1680 x 1050 Case smilodon (yes, t'was the pretty blue lites that got me!) Hard Drives wd caviar black 500 gb
wd caviar black 1tb
wd elements 1tb external hd x2 |
11-16-2009
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#8 | | |
Very cool, whatever works to get it done. Regards- Ken 
Quote: Originally Posted by stevieray 
Quote: Originally Posted by win7clutz Go to control panel - administrative tools - computer management -disc management.
Assign a different drive letter to the device using K:. Then change the current D: to K: and all should be well.
Luck- Unfortunately, I couldn't do it that way. There was no device with the letter K: listed in disc management, yet that letter was also not listed as available under "change letter of drive". I guess that during the repair install, it recognized the second HD as K:, locked out the use of that letter, and then renamed the drive to D:. Brink's registry fix forced the letter K: to be freed up so I could rename my data disc back to K:. | My System Specs | | System Manufacturer/Model Number Home Grown OS Windows 7 Ultimate (64) CPU i7-2600K Motherboard Asus P8P67-M Pro Memory G.SKILL Ripjaws X Series 8GB (2 x 4GB) Graphics Card ATI 5750 Sound Card On-Board Monitor(s) Displays LG W2486L Screen Resolution 1920X1080 PSU Zalman ZM770-XT 770 Watts Case Antec 180 mini Cooling Cooler Master V8 Hard Drives Intel X-25M 80 Gig SSD | Intel X-25M 160 Gig SSD | WD Black 500MB - External eSata Internet Speed 15MB - Cable Other Info Sissy OC - 4.6 @ 1.3175 24/7 | 18' Idle - 55' Load |
11-17-2009
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#9 | | Windows 7 Ultimate x64 SP1 |
Stevie,
I'm happy to hear that you got it sorted.
Last edited by Brink; 09-25-2011 at 12:00 PM..
Reason: typo
| My System Specs | | System Manufacturer/Model Number Self built custom OS Windows 7 Ultimate x64 SP1 CPU Intel i7-980X 3.3 Ghz (3.48 Ghz OC'd) Motherboard ASUS P6X58D Premium Memory 12 GB (2GBx6) DDR3 PC3-16000 2000 MHz Kingston HyperX Graphics Card Sapphire HD5870 Eyefinity 6 2GB Sound Card Realtek HD Audio ALC889 Integrated Chip Monitor(s) Displays 3x 27" Asus VE278Q Screen Resolution 1920x1080 Keyboard Logitech Cordless Desktop MX 5500 Revolution Mouse Logitech Cordless Desktop MX 5500 Revolution PSU OCZ Series Gold OCZZ1000M 1000W Case Corsair Obsidian 800D Cooling Thermalright Ultra 120 Extreme Copper CPU heat sink w/120 MM Hard Drives 160GB OCZ RevoDrive X2
** 2 x 1TB Samsung HDD HD154UI SATA Internet Speed 50 Mb/s Download and 2 Mb/s Upload Other Info Microsoft LifeCam Cinema
** Lite-On iHBS212 12x BD Writer
** Samsung CLX-3175FW Printer
** Netgear WNDR3800 Router
** Motorola SBG6580 Cable Modem
** 2x APC Back-UPS XS 1500 Can't change hard drive letter to needed letter problems? All times are GMT -5. The time now is 08:38 AM. |  |