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Windows 7: Custom Install Query, 0MB Unallocated?

30 Jun 2010   #1

Windows 7
 
 
Custom Install Query, 0MB Unallocated?

I was installing Windows 7 on my existing XP 500GB HDD.

I created a new 100GB partition for Windows 7 and was expecting to get:-
  1. 100MB system - the System reserved that Windows 7 creates
  2. 100GB (102400MB) primary - for Windows 7
  3. The rest Unallocated - I was going to use this for DATA
Instead I got:-
  1. 0.0MB Unallocted
  2. 100MB system - the System reserved that Windows 7 creates
  3. 100GB (102400MB) primary - for Windows 7
  4. The rest (in MB) Unallocated - I was going to use this for DATA
Could anyone tell me why the 0.0MB Unallocated is there?

I have had Windows 7 on this HDD before and everything was as expected then. The HDD was checked in windows prior to the install and it did not flag any bad sectors, so I am hoping the HDD is OK.

I was wondering whether to use "diskpart" in the install disk "repair" and "clean all" to clear the HDD before installing.

Many thanks for any replies.

My System SpecsSystem Spec
.

30 Jun 2010   #2

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

Using the Clean all would very good idea.
My System SpecsSystem Spec
30 Jun 2010   #3

Windows 7
 
 

Thanks theog, I will do that first before the install.

Do you know why the 0.0MB Unallocated is there? I was worried it may be bad sectors or something.
My System SpecsSystem Spec
.


30 Jun 2010   #4

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

It may be bad sectors, see what clean all can do.
My System SpecsSystem Spec
30 Jun 2010   #5

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
 
 

Can you post a screenshot of the disk management window? Click on Start button, type "Diskmgmt.msc" without quotes, hit Enter.
My System SpecsSystem Spec
30 Jun 2010   #6

Windows 7
 
 

Quote:
Can you post a screenshot of the disk management window? Click on Start button, type "Diskmgmt.msc" without quotes, hit Enter.
Sorry Bill2 for late reply.

Have already done "clean all" then installed, so too late for screenshot.

I could repeatedly delete/merge all partitions and when I created the 100GB OS one it would always be there, an extra 0.0MB Unallocated.

It was OK this time, back to normal after the clean all.

I am doing diskchecks (with both options checked) for both partitions (C: & D) and will find the output file to read, in case of bad sectors. Just managed to read "0 bad sectors" for C: before it completed, and screen went, so hope D: ok too.

Should there be a few bad sectors anyway on a 500GB or are they usually perfect?

Many thanks for any replies.
My System SpecsSystem Spec
30 Jun 2010   #7

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
 
 

Well, bad sectors would appear after age and use. But the hdd SMART tech does a pretty good job of hiding them. It draws good sectors from a pool of spare ones, so for the end user, nothing appears to have changed. But you are now fine and good to go.
My System SpecsSystem Spec
30 Jun 2010   #8

Windows 7
 
 

Quote:
Well, bad sectors would appear after age and use. But the hdd SMART tech does a pretty good job of hiding them. It draws good sectors from a pool of spare ones, so for the end user, nothing appears to have changed. But you are now fine and good to go.
Thanks for the info Bill2
My System SpecsSystem Spec
30 Jun 2010   #9

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

That is good news, well done
My System SpecsSystem Spec
30 Jun 2010   #10

Windows 7
 
 

Quote:
That is good news, well done
Thanks theog, The Windows 7 install is very fast compared to XP. The clean all is very slow though for 500GB
My System SpecsSystem Spec
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