First, open your Dell e6530 laptop and press F2 to enter setup.
Then, Choose Boot Sequence.Click on UEFI in the Boot List Option. Click Apply and Exit.
Then download this gumroad file attached.
Then,
DOWNLOAD ISO in these links:
Download which version you want.
WINDOWS XP:
https://softlay.net/operating-system/windows-xp-sp3-iso-full-version-free-download.html
WINDOWS 7:
https://softlay.net/operating-system/windows-7-ultimate-iso-download.html
WINDOWS 10:
https://www.microsoft.com/en-us/software-download/windows10ISO
Then, open the gumroad file HERE
folder 1-
use this app (attached) to format your usb
Click on the Diskimage button
Select the ISO using the … button
Find the ISO you downloaded
In the bottom part, it is like this:
Type: USB Drive | Drive:(this is usually like this disk2s1, make sure no other drive is connected to your mac)
Then click OK
Wait for it to Finish
Then this is the tricky part with Dell e6530 laptop...
USE THE READ ME TEXT IN THE GUMROAD FILE TO CONTINUE
Have fun!