Windows 7: hdd drive not detected on win7 ulti setup

i have acer aspire 4750g

my laptop hanged so i have to force shutdown it.
so after that, (i think) the OS corrupt.

then i planned to reformat.
but when it comes to selecting drive
no drives appeared.

my bios is set to achi
i tried loading the achi driver controller
but nothing appears

i tried also the
diskpart
list disk



it said that there is no disk active (something like that)

Welcome to Windows Seven Forums.

Is the drive recognised in the BIOS?

Press the DEL or F1 key (sometimes both) during startup to get you into the BIOS settings.

i can't post a screen shot.
cause i can't boot the laptop.
and also i tried to format it by winxp
i successfully deleted/format the partition c:
but when i'm installing it (i planned to use the upgrade to Windows 7 that's why i use winxp)
it comes with an error about my disk

I realised that as soon as I posted my comment, which is why my reply has beeen edited.

This link describes how you can install to a hard drive that has no partition on it.

Clean Install with a Upgrade Windows 7 Version

yes, my hd is detected on bios


i can't clean install because i can't install winxp pro.

What is Win XP Pro about?

Check the hard drive with the manufacturer's diagnostic tools.
Hard Drive Diagnostics Tools and Utilities (Storage) - TACKtech Corp.
HD Diagnostic


Acer Empowering Technology > Acer eRecovery Management.
Acer Support - Answers, E-Mail, Chat - How can I restore my computer with the backup discs I created?
Manual how to use Acer eRecovery Management here:
ftp://ftp.support.acer-euro.com/notebook/empowering_technology/NB%20ET2%20user's%20guide/Acer%20eRecovery%20Management%20English.pdf

Have you tried pressing <Alt+F10> at boot up, to goto the Acer eRecovery Management.
Acer Support: Frequently Asked Questions list for How to use Acer eRecovery
You can Order Acer recovery disks from here:
https://secure.tx.acer.com/RCDB/Main.aspx?brand=acer

well i think my HDD ****ed up.
thanks for the support guys.

i'll just bring it to a service center

Its common for hard drives to give up in laptops, heat & being moved don't help.

You do not need XP on the HD to use Windows 7 Upgrade version: Clean Install with a Upgrade Windows 7 Version

What makes you think your HD is bad? Did you run the HD diagnostics/repair extended CD scan linked by Theog?