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Windows 7: cant see hard drives in disk management or in device manager.

11 Jun 2010   #1

windows 7
cant see hard drives in disk management or in device manager.

few days back i have completely formated my hard disk with the help of seagate seatool.Then i have installed windows xp sp3. i have made 4 partitions at that time ie. c,d,e,f. After that i have installed windows 7 now i cant see my hdd in disk management or in device manager. both device manager & disk management are showing me my external drives like pen drive. so what may be the problem. plz help me.
My System SpecsSystem Spec
11 Jun 2010   #2

Microsoft Community Contributor Award Recipient


My System SpecsSystem Spec
11 Jun 2010   #3
Captain Zero

Windows 7 Home Premium x64

Are they enabled in the BIOS?
My System SpecsSystem Spec

31 Oct 2010   #4

windows 7 ultimate 32 bit

I have exact same problem, Using win7 and Xp on the same macahine. I've been working on it for 2 days now and can't find a solution and so far have'nt came accross anyone in any forum who has encounterd this. The weird thing about this one is that win7 backup rejects my backup device but reconises my hard disk, yet disk manager does the opossite. I suspect the conflict may be that to run xp on win7 drive you have to set your hdd in bios to compatabillity mode, and also that to run 2 OS's on one disk can cause a drive letter conflict if sharing files between both OS's from a third partition. If i get to the bottom of it I'll let you know or if you have found a workaround or anyone else can help please put me out of my misery.
My System SpecsSystem Spec
31 Oct 2010   #5

windows 7 ultimate 32 bit

oh btw if your desprate to back up your machine as i am, you can use the XP backup console as an emergancy messure, you are backing up the fault aswell but maybe there will be a fix in the near future.
My System SpecsSystem Spec
31 Oct 2010   #6

Windows 7x64 Home Premium SP1

You need to supply the disk management screenshots as requested earlier.
My System SpecsSystem Spec
03 Apr 2011   #7

windows 7 beta

i have the same problem there is nothing displayed
(cant see drives )you dont need pictures...
please we need a fix for this by the way ABSOLUTLY ALL DRIVES
are missing (cant see drives )nothing is displayed ...EVER...
your help appreciated tnx gene
My System SpecsSystem Spec
03 Apr 2011   #8

Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)

Welcome wd5fdl,

This thread is about 6 months old, so for your problem we need as much info as you can provide to us. Tell us about your hardware. How many drives do you have? are they IDE or SATA ? How about a screen snip of Device manager, any Yellow Exclaimation marks ?
My System SpecsSystem Spec
04 Apr 2011   #9

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64

Windows 7 Beta?

Which OS's did you have installed before this happened?
My System SpecsSystem Spec
04 Apr 2011   #10

windows 7 beta

the problem is in windows 7 pro 64
everything is fine in the device manager
all drives show in my computer...
now i know there is a command in
the command promped to change the cd drive
drive letter but i dont remember the syntaxed
there was a website the had the answer
but i cant find it anymore... had the same problem before but dont remember what i did to fix it i think i just reinstallrd window 7
My System SpecsSystem Spec

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