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Windows 7: Have unallocated space on F: Need to convert to one NTFS drive help.

24 Jan 2011   #21
GARoss

Windows 7 64-bit
 
 

Quote   Quote: Originally Posted by theog View Post
All Linux code must be deleted.

Type in command line
DISKPART
LIST DISK
SELECT DISK # (win HD)
CLEAN ALL
CREATE PARTITION PRIMARY
SELECT PARTITION 1
ACTIVE
FORMAT fs=NTFS
ASSIGN
EXIT
EXIT


How to Remove Linux and Install Windows XP
I mentioned in an earlier post that I'm not sharp with computers & would like to get clarification.

-Currently, drive F says 280Gb NTFS & shows no other partitions. All appears normal.

-Linux OS was installed on this drive but no other. While Linux OS was on F:, Win 7_64-bit was installed on C: as a clean install over Win XP home. Grub had no problems in finding Windows 7 for dual boot (just renamed it to Windows 7 in GRUB).

-Everything appears fine. No boot issues. No mention of GRUB while booting as it did before. I have moved some data to F: but not exceeding its former size.

So, do I still need to use DiskPart? I don't think DiskPart is hard to use but all seems OK.


My System SpecsSystem Spec
.
24 Jan 2011   #22
pallesenw

Windows
 
 

No, using diskpart to write zeroes to the whole disk is not a must.

As DeaconFrost said, the easiest way would have been to just delete the existing partitions in disk management and then create a new one.
My System SpecsSystem Spec
24 Jan 2011   #23
GARoss

Windows 7 64-bit
 
 

OK. I ran DiskPart as theog suggested below.

DISKPART
LIST DISK
SELECT DISK # (win HD)
CLEAN ALL
CREATE PARTITION PRIMARY
SELECT PARTITION 1
ACTIVE
FORMAT fs=NTFS
ASSIGN
EXIT
EXIT

I've attached 3 screen grabs. The first 2 are before & then an after. All seems fine. Note the difference in Used; before @ 109.4Mb & after @ 94.46Mb.

Is there anything else that needs to be done? Can the 94.46Mb data be read to see if it's Linux-free?


Attached Thumbnails
Have unallocated space on F: Need to convert to one NTFS drive help.-capture-1.jpg   Have unallocated space on F: Need to convert to one NTFS drive help.-capture-2.jpg   Have unallocated space on F: Need to convert to one NTFS drive help.-capture-3.jpg  
My System SpecsSystem Spec
.

24 Jan 2011   #24
gregrocker

 

There was an unneeded command given for Diskpart to mark F Active. Rightclick on F in Partition Wizard to Modify>Set to Inactive, OK, Apply. You dont' want a partition marked Active unless there is an OS on it.

I'm not sure why the space used is different unless something wasn't copied back to the HD. Try rightclicking the HD with PW to Check File System and run Surface Scan with repair box ticked.

We see many cases here of GRUB corrupting Win7 even after it's been deleted. Deleting or formatting doesn't erase anything until it is overwritten with zeroes using the Clean All command or Partition Wizard to wipe the HD from the Disk tab or the partition using rightclick>wipe.
My System SpecsSystem Spec
25 Jan 2011   #25
GARoss

Windows 7 64-bit
 
 

Quote   Quote: Originally Posted by gregrocker View Post
There was an unneeded command given for Diskpart to mark F Active. Rightclick on F in Partition Wizard to Modify>Set to Inactive, OK, Apply. You dont' want a partition marked Active unless there is an OS on it.

I'm not sure why the space used is different unless something wasn't copied back to the HD. Try rightclicking the HD with PW to Check File System and run Surface Scan with repair box ticked.

We see many cases here of GRUB corrupting Win7 even after it's been deleted. Deleting or formatting doesn't erase anything until it is overwritten with zeroes using the Clean All command or Partition Wizard to wipe the HD from the Disk tab or the partition using rightclick>wipe.
Thanks,
I'll check these later today & post.
My System SpecsSystem Spec
25 Jan 2011   #26
pallesenw

Windows
 
 

Quote   Quote: Originally Posted by gregrocker View Post
We see many cases here of GRUB corrupting Win7 even after it's been deleted.
I wonder what it takes to reproduce such a corruption
My System SpecsSystem Spec
25 Jan 2011   #27
GARoss

Windows 7 64-bit
 
 

Quote   Quote: Originally Posted by pallesenw View Post
Quote   Quote: Originally Posted by gregrocker View Post
We see many cases here of GRUB corrupting Win7 even after it's been deleted.
I wonder what it takes to reproduce such a corruption
Could it be that corruption occurs when both OS are installed on the same HDD & not when they are installed on separate HDDs? Or perhaps wanting to install Win 7 on a HDD that only has had Linux installed & no other OS before it?

I've used various versions of Ubuntu over the last 2 years on a separate HDD & never had issues with XP & now Win 7. The need to clear Linux off this HDD was because of no longer using Linux at all, not for clashes with Win 7.

It's all very interesting.
My System SpecsSystem Spec
25 Jan 2011   #28
pallesenw

Windows
 
 

No, those are not issues at all. Because a sector on a harddrive is different than zero doesn't mean it will just begin to corrupt other sectors on the drive.
My System SpecsSystem Spec
25 Jan 2011   #29
gregrocker

 

You are correct in your assumption that installing Linux on a separate HD safeguards it from corrupting Win7 as it can when on the same HD.

Even better is to then boot either HD via the BIOS boot order or one-time BIOS Boot Menu so the HD's remain independent to come and go as you please.

This is the solution we propose in many cases of GRUB corruption making Win7 irreparable.

In fact, GRUB is most frequently on the HD when Win7 is absolutely irreparable, worse than compound tweaking which is the second-most-often cause of irreparability.

It becomes obvious when another OS causes these kind of problems in a forum where we repair more Win7 than any place else on the web.
My System SpecsSystem Spec
25 Jan 2011   #30
pallesenw

Windows
 
 

But where is the problem? We have a harddrive with a Linux on it. We don't want Linux anymore, so we delete the partitions and create a new one that we want to use with Windows.

How will you explain that a corruption can occur, if the entire harddrive is not overwritten with zeroes first?

Of course something can happen, if you try to install Linux with an existing Windows-installation in place, if you don't know the hows and whys.
My System SpecsSystem Spec
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 Have unallocated space on F: Need to convert to one NTFS drive help.




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