No boot sector on internal hard drive while AHCI enabled installation

It's nearly impossible to understand your problem from reading your original post, so you're not able to benefit from our advice until there is some clarity.

Are you able to install Win7 or Vista, but need the disk in drive to enable it to boot? The solution for this is to mark Win7 Active then boot into DVD System Recovery Options to run Startup Repair - Run 3 Separate Times to repair the boot. Partition - Mark as Active (Method Two)

If you're unable to install try IDE mode if you have it. What other SATA controller modes are available? What other OS has been installed successfully on this machine and in what mode?

If you have Vista but cannot install Win7, try running Win7 installer from Vista desktop to install to it's disk.

Once you clarify the problem exactly we will have other troubleshooting steps as this is where these problems are solved once we understand exactly what it is.

gregrocker said:

It's nearly impossible to understand your problem from reading your original post, so you're not able to benefit from our advice until there is some clarity.

Are you able to install Win7 or Vista, but need the disk in drive to enable it to boot? The solution for this is to mark Win7 Active then boot into DVD System Recovery Options to run Startup Repair - Run 3 Separate Times to repair the boot. Partition - Mark as Active (Method Two)

If you're unable to install try IDE mode if you have it. What other SATA controller modes are available? What other OS has been installed successfully on this machine and in what mode?

If you have Vista but cannot install Win7, try running Win7 installer from Vista desktop to install to it's disk.

Once you clarify the problem exactly we will have other troubleshooting steps as this is where these problems are solved once we understand exactly what it is.

HI, yes i can install both windows vista and windows 7 without any problem. I am using paragon partition and as well as windows disk management both shows that my (C) drive where windows, system files, boot files are existing " is active .
although i have made only one partition in order to boot properly.

I am able to install vista and windows7 on both 'Modes' ATA and AHCI. There are 3 options for controller ATA, AHCI and the other is OFF which obviousely means set the controller off so i didnt test that.

When i boot to windows repair or recovery option to fix or repaire boot automatically it says that there is no problem found in your system.

If i istall windows (vista or 7) in IDE/ATA mode system boots from bios fine without giving me any problem ,' However if i intall windows (vista or win7) it giving me "no boot sector on internal hdd" problem

I have erased my HD using MHDD a software developed by hdguru.com which is more suffucient and powerfull as other manufacturer made tools. however i coudnt find manufecturer tool for Toshiba hard drive and they dont make it .

Now the problem is that system wont boot up properly when it is in AHCI mode and giving the above error.

If i install windows in IDE/ATA mode it will install and boot properly without any problem but the reason i dont want IDE/ATA is because i want to utitliz various benefits of AHCI with eSATA port enable and hotswap and also i can notice a signeficent boost in boot time and performance and so on.

Installing windows on AHCI enabled is going same as in ATA mode but the problem is it cant boot from system the first time , It first giving me no boot sector error and then 3 option F1 , F2 , F5 after a couple of second blinking *_* this sign on top left with black screen . if i hit the F1 option then it will boot otherwise it wont boot until it gives me this error

Install in AHCI so you get the full functions you want, to separate HD's with one unplugged while installing to the other. Then boot choice of HD's by setting preferred first to boot in BIOS setup, boot other HD using one-time BIOS Boot Menu key which on Dell is F12.

Then post back a screenshot of your maximized Disk Management drive map with listings showing all columns, using the Snipping Tool in Start Menu.

Here are the snapshots taken from device management and by the way i have only one internal hard drive to install windows .

We need the Disk Mgmt screen, not Device Manager.

It's normal to have Safely Remove show HD for hotswapping when running AHCI mode.

hi sorry , i mistakenly take it as you said device manager
here is the device management