Missing Operating System error

[sivacool143]

I am trying to install windows 7 operating system in my dell laptop with pen-drive. So i set priority as removable disk as my primary boot device in BIOS settings. When i try to restart my laptop i am getting missing operating system error. Can anyone please tell me the solution.

 

[Dinesh]

How did you put windows 7 in a pen drive?
Is the pen drive bootable?

 

[sivacool143]

Actually it is an ISO file i opened it with daemon tools software and copied all the files into pen drive and in the BIOS setting i placed Removable Disk as first priority. I don't know whether pen drive is bootable or not but i think when we change the bios settings and set removable disk as primary boot device it is going to work.

 

[Dinesh]

It looks like you simply copied the ISO to the pen drive. You have to make it bootable first using http://www.sevenforums.com/tutorials/31541-windows-7-usb-dvd-download-tool.html

 

[sivacool143]

Thank you for your reply but i don't want to run with DVD by burning ISO to DVD because my DVD writer is not working in my laptop so that's why i want to run from pen-drive. I haven't copied the ISO image directly but i opened with daemon tools and copied setup files to my pen-drive. Can you please tell me the way how to run from pen-drive.

 

[sivacool143]

Ya okay thank you so much got it .

 

[Dinesh]

Please read the tutorial again. It has two options : DVD & USB.

 

[sivacool143]

After everything is done can i format my entire system by clicking setup or else i have to boot my system ?

 

[Dinesh]

You'll have to boot your PC using the bootable dive you just made.

 

[gregrocker]

Follow these illustrated steps for Clean Install Windows 7

In addiiton read over these steps for getting a perfect Clean Reinstall - Factory OEM Windows 7 which will assure you get and keep a perfect intsall.