Can't install win7 x64

Hello,

This is the story so far:

My pc came together with windows vista home premium but because i didn't like it, i installed win7. Everything worked just fine. I reinstalled it around 15 times to experiment with things like making it unattended and such and still, everything worked just fine. When i had enough of windows 7 and wanted to downgrade back to windows xp, i thought i needed to completely erase my disk which i did using the windows 7 setup. After i inserted my windows xp disc, it never recognized my hd so i tried to go back to Windows 7. When i came to the step where to choose wich hd you want to use to install Windows 7 to it gave the error: Setup was unable to create a new system partition or locate an existing system partition.

These are the things i tried to fix it:

- Looked in my motherboard to change ACPI to IDE No such option exists.
- Tried several options using diskpart like formating it in ntfs, assigning the letter A, making it the first volume and disk etc...
- Changing the boot order to boot my hd first.
- Installing Vista again but gave somewhat the same error.

These are some facts:

- Ubuntu installed just fine, I'm currently using it.
- The setup recognized my hd.
- I have no extra disks available.
- My pc came with a hidden partition named PQSERVICE or something of 14.65 GB which i deleted. Windows 7 still installed fine after that.
- I could have forgotten some things i tried to fix it.
- I install windows 7 from an usb formatted as ntfs of 4 GB
- I have no idea how to even install things in ubuntu so no lead there.
- I am not very techy in pc's but i know most of it so i'm willing to experiment.

So long things short:

The problem started right after i used the format hd utility in the Windows 7 setup.

I am very sorry about my crappy English, i hope you could understand most of it.

If someone knows how to fix this or even has an idea to fix it, please i beg you tell me i really miss my pc.

Here are most specs if it helps:

System Manufacturer/Model Number:
Acer Aspire m1641
OS What's your OS? Please state which version of Windows you are running and if it is 64 or 32 bit. e.g. Windows 7 Ultimate x64, Windows 7 Home Premium 32bit. :
Ubuntu 10.10
CPU :
E5200 @ 2.5 Ghz
Motherboard :
No idea
Memory :
2x 2048
Graphics Card(s) :
Nvidia Geforce GT100
Sound Card :
No Idea
Monitor(s) Displays :
Acer Monitor X233HQ
Screen Resolution :
1920x1080
Hard Drives :
I think Seagate 750 GB or Barracuda 7200, 12 750 GB
PSU :
No idea
Case :
No idea
Cooling:
No idea

Are you using an ugrade 7 or full retail?

Great start with this
SSD / HDD : Optimize for Windows Reinstallation

Then try this
Clean Install Windows 7

What program did you use to wipe your hard drive?

You already did the "clean all" with diskpart?

steerty said:

is simply clean the same as clean all? if so, then yes.

Hello steerty, welcome to Seven Forums!



No the 'clean' argument is not at all the same as the 'clean all', the 'clean' just over-writes the Hard Disk Drive (HDD) format data (no better than a regular format) and the 'clean all' over-writes all the data on the entire HDD with zeroes.