I prepared a Windows 7 ISO file, bootable pendrive by using DISKS.
Here's my system configuration.
Currently Ubuntu is running on my system (only one OS) When I am trying to install the Windows 7 using a penddrive, it is showing no device is found. But am able to view the pendrive data/details once I'm logged into the system.
Is this problem due to partition issues?
Please give some guidance/suggestions on how to install Windows 7.
As I said on comments, the question is Off-Topic, but since you want help with gparted, which is a GNOME partition-editing application run on Linux, I guess I can help you a bit.
In order to make a new OS Installation, you need to keep the EFI System Partition and delete everything else: linux-swap and ext4 (Win7). Then, you should have EFI and unallocated space (NOT unformatted).
Unfortunately, I can't help you any further. Google is your best friend.
