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Windows 7: Drive letter disappear after reboot

01 Jun 2012   #71
grimacedface

Windows 7 Ultimate 64 bit
 
 

I set my two TB drives to RAID 0 and they work fine now. I didn't want to run them in RAID but whatever.


My System SpecsSystem Spec
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01 Jun 2012   #72
nick james

Washington
 
 

Quote   Quote: Originally Posted by F5ing View Post
Try using Diskpart to check the volume details to see if the attribute nodefaultdriveletter is set to "yes". If so try changing it to "no" to see if that'll let you set a drive letter that sticks across boots.
Did I do it right?
What do you think?

ALSO, why does it say the FREE space is 0 bytes? (see attached photo)


Attached Images
Drive letter disappear after reboot-capture.jpg Drive letter disappear after reboot-capture2.jpg 
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01 Jun 2012   #73
F5ing

Windows 7 Ultimate x64
 
 

You've got to detail the volume that's losing it's drive letter.

The 0 free space for that disk simply means there is no unallocated space left on the disk. You have to detail each volume to see the free space within the volume.
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01 Jun 2012   #74
nick james

Washington
 
 

That is the volume detail of the drive that is losing the letter hence the H:\ drive letter. Thats what I always have to change the drive letter to when I restart. What am I missing here?
My System SpecsSystem Spec
01 Jun 2012   #75
F5ing

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by nick james View Post
That is the volume detail of the drive that is losing the letter hence the H:\ drive letter. Thats what I always have to change the drive letter to when I restart. What am I missing here?
My previous post, for that other poster who had freshly formatted disks, stated:

Quote:
check the volume details to see if the attribute nodefaultdriveletter is set to "yes". If so try changing it to "no" to see if that'll let you set a drive letter that sticks across boots.
Check to see what H: drive's current setting is. If it's "yes" you can change it to see if it then keeps the letter across boots. But make the change at your own risk. I've not done this before and I doubt there is much risk of data loss, but you never know. As always it's better to have everything backed up already anyway...
My System SpecsSystem Spec
02 Jun 2012   #76
nick james

Washington
 
 

Quote   Quote: Originally Posted by F5ing View Post
Quote   Quote: Originally Posted by nick james View Post
That is the volume detail of the drive that is losing the letter hence the H:\ drive letter. Thats what I always have to change the drive letter to when I restart. What am I missing here?
My previous post, for that other poster who had freshly formatted disks, stated:

Quote:
check the volume details to see if the attribute nodefaultdriveletter is set to "yes". If so try changing it to "no" to see if that'll let you set a drive letter that sticks across boots.
Check to see what H: drive's current setting is. If it's "yes" you can change it to see if it then keeps the letter across boots. But make the change at your own risk. I've not done this before and I doubt there is much risk of data loss, but you never know. As always it's better to have everything backed up already anyway...
I don't understand how to find this attribute or howto even check it?
My System SpecsSystem Spec
02 Jun 2012   #77
F5ing

Windows 7 Ultimate x64
 
 

In this screenshot I'm using Diskpart to list attached disks, identify which is my boot disk, select it, detail it to view volumes. I select volume 2 (drive C), detail it and can see the No Default Drive Letter is set to No. So it's drive letter sticks across boots.

I then select volume 1 (System Reserved volume), detail it and can see the No Default Drive Letter is set to Yes. That volume does not have a drive letter.


Attached Thumbnails
Drive letter disappear after reboot-capture4.png  
My System SpecsSystem Spec
02 Jun 2012   #78
nick james

Washington
 
 

I get it now, thanks for taking the time to send that screen shot. I see from the detail my drive is set to 'no'- no default drive letter.

Could you help me change the attribute to yes as well? I'm assuming thats what's next?
My System SpecsSystem Spec
02 Jun 2012   #79
F5ing

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by nick james View Post
I get it now, thanks for taking the time to send that screen shot. I see from the detail my drive is set to 'no'- no default drive letter.

Could you help me change the attribute to yes as well? I'm assuming thats what's next?
Yes, that would be next, except:

If No Default Drive Letter is set to No I would expect it's drive letter is set to stick across boots.

Are you sure you're looking at the correct volume? Examine my screenshot again, where I detailed two different volume, one where the drive letter sticks (set to No) and one with no drive letter (set to Yes).

Have you backed up the data on that drive yet?
My System SpecsSystem Spec
05 Jun 2012   #80
nick james

Washington
 
 

Quote   Quote: Originally Posted by F5ing View Post
Quote   Quote: Originally Posted by nick james View Post
I get it now, thanks for taking the time to send that screen shot. I see from the detail my drive is set to 'no'- no default drive letter.

Could you help me change the attribute to yes as well? I'm assuming thats what's next?
Yes, that would be next, except:

If No Default Drive Letter is set to No I would expect it's drive letter is set to stick across boots.

Are you sure you're looking at the correct volume? Examine my screenshot again, where I detailed two different volume, one where the drive letter sticks (set to No) and one with no drive letter (set to Yes).

Have you backed up the data on that drive yet?
I have no backed up the drive yet. I need to order a 2.5tb drive and put it in an enclosure. I'm a little tight for funds right now but I know it needs to happen sooner than later! I think the last time I checked, newegg had them for $89.99 shipped.

I'm almost positive I'm looking at the right drive (take a look at the screen shot). I know my H:\ is the drive I have selected. I dont have a volume that has 1,8xxGB on it. I can't think of any other dead giveaways. I highlighted the lines in the picture to reassure myself that I have the right volume.

What do you think?


Attached Images
Drive letter disappear after reboot-3.jpg 
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