Solved Will A: vs. C: work as the Windows-7 System Drive?

Mike Lynch

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I would like to begin using an SSD in my older Tower.

I use W7-Pro-64 with 4GB's of Ram.

I would like to know if I were to install 7 on an SSD and assign the Systems Drive Letter to A:, if I would have any trouble with 7?

Additionally, would Applications like Office, BoostSpeed, Picasa, etc. install on C: as they did before or would they install on A:?

I'm hoping they are all going to install on C:.
 

My Computer My Computer

At a glance

Microsoft Windows 7 Professional 64-bit 7601 ...Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz8.00 GBIntel(R) HD Graphics 4000
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Two HP Desktops. One in the Laundry Room / Bed Room.
OS
Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz
Motherboard
Hewlett-Packard 3396
Memory
8.00 GB
Graphics Card(s)
Intel(R) HD Graphics 4000
Sound Card
(1) Realtek High Definition Audio (2) Intel(R) Display Aud
Monitor(s) Displays
Hanns-G
Screen Resolution
1440 x 900 x 32 bits (4294967296 colors) @ 59 Hz
Hard Drives
(1) ATA WDC WD40EZRX-00S SCSI Disk Device (2) HP Officejet Pro 86 USB Device (3) WD My Book 1230 USB Device
PSU
Whatever came with the CMT.
Case
HP CMT Black.
Cooling
Whatever came with the CMT.
Keyboard
Logitech K740.
Mouse
Microsoft Optical Mouse 1000.
Internet Speed
Spectrum 25Mbs.
Antivirus
WebRoot, Microsoft Security Essentials.
Browser
EDGE
Other Info
HP Officejet Pro 8600 Plus.
WD MyBook 4TB.
A: & B: are for fopply drives, the OS needs to be installed to C:.
 

My Computer My Computer

At a glance

ME/XP/Vista/Win7
OS
ME/XP/Vista/Win7
When correctly installed from boot Win7 will always see itself as C. If installed from another OS which blocks it from C, it will take the next available drive letter not including A or B.

Since entire generations have been born not knowing what floppy drives are, I don't know how much longer those letters and B will be blocked or if they are somehow available. Others might know for sure a way to claim them.
 
Last edited:
I used B: as my 3.5" Backup Drive for about a year with no bad effects that I know of.

I just wanted Forum Feedback as it might keep me out of trouble.

Have any other Forum Members tried this with a SSD?
 

My Computer My Computer

At a glance

Microsoft Windows 7 Professional 64-bit 7601 ...Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz8.00 GBIntel(R) HD Graphics 4000
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Two HP Desktops. One in the Laundry Room / Bed Room.
OS
Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz
Motherboard
Hewlett-Packard 3396
Memory
8.00 GB
Graphics Card(s)
Intel(R) HD Graphics 4000
Sound Card
(1) Realtek High Definition Audio (2) Intel(R) Display Aud
Monitor(s) Displays
Hanns-G
Screen Resolution
1440 x 900 x 32 bits (4294967296 colors) @ 59 Hz
Hard Drives
(1) ATA WDC WD40EZRX-00S SCSI Disk Device (2) HP Officejet Pro 86 USB Device (3) WD My Book 1230 USB Device
PSU
Whatever came with the CMT.
Case
HP CMT Black.
Cooling
Whatever came with the CMT.
Keyboard
Logitech K740.
Mouse
Microsoft Optical Mouse 1000.
Internet Speed
Spectrum 25Mbs.
Antivirus
WebRoot, Microsoft Security Essentials.
Browser
EDGE
Other Info
HP Officejet Pro 8600 Plus.
WD MyBook 4TB.
Windows will always be C, you can`t pick a drive letter during an install.

You can install windows on a partition marked D when your in windows, but when you boot to that system it will still be C.
 

My Computer My Computer

At a glance

Windows 10 Pro x64Intel Core i7 6700KGSkill TridentZ RGB 16GB 3600 16-16-16-36EVGA GTX 980 Ti SC x2
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Skylake Special #666
OS
Windows 10 Pro x64
CPU
Intel Core i7 6700K
Motherboard
Asus Sabertooth Z170 Mark 1
Memory
GSkill TridentZ RGB 16GB 3600 16-16-16-36
Graphics Card(s)
EVGA GTX 980 Ti SC x2
Sound Card
Realtek High Definition
Monitor(s) Displays
AOC G2460PG
Screen Resolution
1920 x 1080 144Hz
Hard Drives
Samsung 860 Pro 256GB, Seagate Barracuda 4TB x2
PSU
EVGA 1000 P2, EVGA White Custom Braided Cables
Case
Corsair Vengeance C70 Gunmetal Black
Cooling
Corsair H100i v2, Corsair ML120 x2, Thermal Grizzly Kryonaut
Keyboard
Logitech G910 Orion Spectrum
Mouse
Logitech G700s
Internet Speed
Verizon Fios Quantum Gateway 75/75
Antivirus
Windows Defender, Malwarebytes Free 3.8.3
Browser
Chrome
Other Info
Corsair SP120 x4, LG Blu-ray Drive, Durabrand HT-395 100 Watt Dolby Digital Amp, Corsair H2100 Wireless 7.1 Headset
As long as it's being installed from booted installer so that the OS it's being run from doesn't withhold C.
 
Exactly.
 

My Computer My Computer

At a glance

Windows 10 Pro x64Intel Core i7 6700KGSkill TridentZ RGB 16GB 3600 16-16-16-36EVGA GTX 980 Ti SC x2
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Skylake Special #666
OS
Windows 10 Pro x64
CPU
Intel Core i7 6700K
Motherboard
Asus Sabertooth Z170 Mark 1
Memory
GSkill TridentZ RGB 16GB 3600 16-16-16-36
Graphics Card(s)
EVGA GTX 980 Ti SC x2
Sound Card
Realtek High Definition
Monitor(s) Displays
AOC G2460PG
Screen Resolution
1920 x 1080 144Hz
Hard Drives
Samsung 860 Pro 256GB, Seagate Barracuda 4TB x2
PSU
EVGA 1000 P2, EVGA White Custom Braided Cables
Case
Corsair Vengeance C70 Gunmetal Black
Cooling
Corsair H100i v2, Corsair ML120 x2, Thermal Grizzly Kryonaut
Keyboard
Logitech G910 Orion Spectrum
Mouse
Logitech G700s
Internet Speed
Verizon Fios Quantum Gateway 75/75
Antivirus
Windows Defender, Malwarebytes Free 3.8.3
Browser
Chrome
Other Info
Corsair SP120 x4, LG Blu-ray Drive, Durabrand HT-395 100 Watt Dolby Digital Amp, Corsair H2100 Wireless 7.1 Headset
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