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Windows 7: Disk error after 1st reboot in W7 re-install

10 Oct 2010   #1

W7 Home Prem, Vista home Prem
Disk error after 1st reboot in W7 re-install

Hi folks,

Yesterday I installed W7 and all working ok. For resons I wont go into I decided that a re-install (as so little info was in the o/s) was easier than trying to solve admin/user issues.

Setup before re-install:
My HDD has 3 partitions and some unallocated space
Partition 1 - System Reserved 300 Mb (NTFS, Primary, Active)
Partition 2 - Windows 7 400 Gb (NTFS, Primary)
Partition 3 - Vista Image from another HDD 150 Gb (NTFS, Primary)
Unallocated space - approx 400 Gb

Prior to beginning the renstall W7 was stable and happy. I could also dual boot happily into Vista on the other partition using the Win boot menu.

Re-Instal Process:
Went into Partition Wizard Boot CD and then wiped both the Sys Reserved partition and the Windows 7 partition (i wrote 0's to both)
I then formated both of these partitions using PWBD
Lastly I ensured that the Sys Res partition was Active (which it still was from last time)
I then re-booted using the W7 install DVD
It went through the instal process quite happily until the first re-boot is needed.

At this point during the previous and sucessful installation on Sat, upon booting up it said 'press any key to boot ffrom DVD drive' so i left it and it then booted from the HDD and carried on with the W7 install for 5 more mins and was done.

However this time, I got the same message about booting from the DVD and again I left it and nothing happened. After 5 mins I gave up and hit a key and it just said disk read error and hung on a back screen with flashing cursor.

So I ejected the W7 DVD and rebooted and just got the same message.

SO I rebooted with the W7 dvd in this time - and it began re-installing W7 again. It got about 5 mins into the instal process (was going a lot faster than normal cos most of the files were already there and uncompressed) and then gave the message of 'there are already windows files on the drive, it will copy them to a file called windows.old and carry on with the install'

Becasue I want a clean install (and dont want a messed up install in there somewhere), whilst I wait for replies Ive been back into PWBD and am currently re-wiping the Sys Res drive and the W7 drive ahead of another attempt at installing

I decided agaiunst this at the time and have just stopped and am writing this here to see what people think is the best way to proceed or if Im doing something obviously silly.

Aside from the wipe Im doing, the method of installing W7 with a pre created Sys Res partition worked perfectly on Sat under Barefoot Kids guidance

Thanks in advance for any thoughts

My System SpecsSystem Spec
10 Oct 2010   #2
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate

Hello Matt.

Do the wipes again, it's always best to have the best possible space to install Windows 7 to.

If the Windows 7 install disk is one you burned yourself it may be a bad burn and needs to be done again, if so this would be the first thing to try.

Use the free ISO burner at the link below to burn another at a speed of now more than 4x and select to let the program to verify the disk before it finishes.

ImgBurn Free ISO Burner
My System SpecsSystem Spec
10 Oct 2010   #3

W7 Home Prem, Vista home Prem

Hi barefoot,

Wipes are in progress

The w7 disc is original. It's a w7 full retail version home premium purchased fri. It's got the 32bit and 64bit versions on separate disks. Yesterday I installed the 64 bit and that's the one I wish to stick with

The affore mentioned 'read error' was when trying to read the hdd not the odd. Also the hdd is brand new as of fri
My System SpecsSystem Spec

10 Oct 2010   #4
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate

Maybe it was a one-off error and it will go well this time, give it a go.

Check all the HDD cable connections.
My System SpecsSystem Spec
10 Oct 2010   #5

MS Windows 7 Ultimate SP1 64-bit


Boot from the Win 7 DVD.
At the very first dialog press SHIFT F10 key combo

Go to a a command prompt.

Run DiskPart's clean all command.


type DiskPart, Enter key
type List disk, Enter key
note the numeral of the disk you want to clean
for example purposes, Iíll be using the numeral 2
type Select disk 2, Enter key
type Detail disk, Enter key
this info will let you know if you selected correctly
type Clean ALL, Enter key
your entire disk is being overwritten with zeros.
This can take a considerable amount of time
type EXIT, Enter key (only after Clean is finished)
type EXIT, Enter key (this gets you back where you were)
My System SpecsSystem Spec
10 Oct 2010   #6
Microsoft MVP


Karl he wants to keep his Vista partition so can't Clean All.

Are there flags showing on Vista partition now in PW, Matt?
My System SpecsSystem Spec
11 Oct 2010   #7

W7 Home Prem, Vista home Prem

Hi Greg,

Wipes are finished now but am away from home pc because I'm at work now (it's 9am Monday for me')

However when last looks at the end of the wipe last night the following info was there:

Acitive / non-active flag. My system reserved partition is still active

Ntfs - the sys res, win 7 and vista partitions are all labeled ntfs. The unallocated space is not

However after the wipe with zeros the partitions that were sys res and win 7 don't have their labels anymore and are also showing up as unformatted

I havent yet formatted them - that was going to be my next question: do I format then with PWBD or do I launch straight into win7 install

Only problem with the latter is that if I do, neither partition will have a label during install and I'll have to guess where to install w7 based on the size of the partition alone

My System SpecsSystem Spec
11 Oct 2010   #8
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate

You don't need to do anything else in PW; when you get here you can easily tell the partitions apart, you can also format them here also at "Drive Options (advanced)" do it this way.

click to enlarge
Disk error after 1st reboot in W7 re-install-22222.jpg

My System SpecsSystem Spec
11 Oct 2010   #9
Microsoft MVP


I was asking you earlier if any flags changed on the Vista partition. There should be none.

Partition using PW CD since you need to mark System Reserved Active again.

If the install fails again then I would boot back in, delete the SysReserved and WIn7 partitions, then create one partition in that space to try installing to.

Do you have any Win7 backup images?
My System SpecsSystem Spec
11 Oct 2010   #10

W7 Home Prem, Vista home Prem

Barefoot kid: ok - thanks. I will give it another shot at a re- install without formatting either the sysres or w7 partitions from PWBD. I will use w7 installer to format. I presume that this process will all me' to re-label the two currently unlabelled partitions?

Greg: hi. To be clear:
The vista partition did not have an active flag before w7 was reinstalled, nor during or after the partition wipes of the w7 and sysres partitions. The active flag (according to pwbd) has always remained with the sys res partition. I've never had to set or under this since the original installation of w7

Additionally, the wiping of the sysres and w7 partitions did not require me' to unmake or remake any partitions. I just scheduled a wipe of both the sysres and w7 partitions (as labeled) from within pwbd. After the wipe the partitions are still there, just unlabeled and unformatted. Their sizes are as before

I'm trying not to be confusing- sorry.
Because the partitions are still there, even after the wipe, the partition that was labeled sysres (but now has no label) is still marked as active

Hope that explains?

If this re-install fails tonight, then I will delete the sysres and windows 7 partitions and create a single, wiped w7 partition and try an install into that and see how it goes

My System SpecsSystem Spec

 Disk error after 1st reboot in W7 re-install

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