Unable to install Window 7 or 8 on Inpiron 5520

Hi Prashant Deokar,

Yes you can install Windows 7 as well as Windows 8 on GPT partition. You just need to format the hard drive completely. You can create or delete partitions press "shift+F10" this will open a command prompt and you can use diskpart to convert to GPT. You may refer to the Microsoft link: http://bit.ly/QJ0FEh.

* Note: This step leads to complete data loss including pictures, music files, videos, documents and applications. Please disconnect any external peripherals as well.

Hope this helps. Please feel free to reply for any further questions.

Thank Amogh for your reply.

My disk is already having style of GPT and while installing window 7 or 8. its give me error that This disk is GPT style partition. You can not install window on it.

Do i need to change the setup of Win 7 or 8 to compatible for GPT partition?  OR

Do I need to convert current GPT partition to MBR and install win 7 or 8 on it?

Thanks

Prashant D.

Hi Prashant Deokar,

I would suggest you to change the boot mode to UEFI in BIOS and then try to install operating system on GPT format. You may follow the steps below:

• Tap 3-4 times at Dell logo.
• Go to ‘Boot’
• Go to ‘Boot List Options’
• Change it to ‘UEFI’
• Enable ‘Secure Boot’
• Press to ‘Save Changes and Exit’

Now try to install Windows in GPT partition.

Keep me posted with the findings. I will be glad to assist further.

Thank you Amogh for your help. It worked. After I have boot from UEFI mode for my USB drive. Previously i was trying for normal boot which is might be MBR boot mode. Now I have successfuly installed the win 8 on GPT disk without any GPT -> MBR conversion.  Last option was that only. :)

Thank you once again for your help.

Thanks

Prashant D

Hi Prashant Deokar,

Thank you for the reply. I am delighted to know that the issue has been resolved. I hope Windows 8 is installed properly and everything is working absolutely fine.

Please feel free to reply for any other questions. I will be glad to assist.

I am unable to install Windows on Dell 5520 as it gives me error of GPT hard type
Please Someone help me

The procedure that you have mentioned above is not working in my laptop
when i do it as UEFI then in boot menu it doesnot show the usb option

To reinstall Windows 8.1 with a .iso and bootable USB see here:

http://dellwindowsreinstallationguide.com/download-microsoft-windows-and-office/download-microsoft-windows/download-windows-8-1-retail-and-oem-iso/

To reinstall using Dell Backup and Recovery media see here:

http://dellwindowsreinstallationguide.com/dell-backup-and-recovery/

I just done testing on my new system with a UEFI BIOS with SecureBoot enabled.

Hi Amogh,

can u help me to install window 7 on my dell precision 7510 with uefi enabled mode.

i tried many things as creating usb in gpt style, copy certain files and folders , tried making usb with rufus but the issue is that the screen get stuck on starting windows with 4 color dots. plz reply asap.

What version of 7 are you installing (Home/Pro, Enterprise, etc.)?

The Precision 7510 is a Skylake system. The UEFI BIOS settings and installation media must be updated accordingly.

In the UEFI Setup: UEFI should be enabled. Legacy ROMs should be enabled. Also SecureBoot should be disabled. The SATA operation should be set to AHCI. For more details see:

http://dellwindowsreinstallationguide.com/uefi/ 

Installation media needs updated to incorporate USB 3.1, NVMe support and SATA preinstallation drivers. For best results use the Dell Windows 7 Professional Reinstallation Skylake .iso. More details here:

http://dellwindowsreinstallationguide.com/download-dell-windows-7-64-bit-reinstallation-sp2-oem-iso-for-a-uefi-bios/