im currently trying this now do i have to download macrium on my laptop aswell?
Is this correct?
you have a laptop and you want to move everything from an old drive to a new drive in this laptop.
you also have an external drive
you also have a desktop PC
IF, I say IF, the above is correct you would:
Ignore your desktop PC completely. It isn't involved at all.
Install Macrium on the laptop. It doesn't have to be installed anywhere else.
Open Macrium and immediately make "rescue media" from Macrium menus using a USB flash drive of at least 1 GB in size.
Confirm that you can boot your laptop using the rescue media you just made. It should lead you to the Macrium interface.
While booted from the rescue media, make one image file in Macrium containing ALL partitions on the old drive, saving that image file to your external drive.
Shut down.
Remove the old drive.
Replace it with the new drive
Boot the laptop from the rescue media. That will take you again to Macrium.
Use Macrium menus to "restore" the image file on the external drive to the new drive.
Shut down.
Remove the rescue media from the USB port.
Attempt to boot from the new drive. It will or it won't.
If it won't, you likely did something wrong. Macrium success rate is probably 99%.
The tutorial should get you through this. If you have problems, ask.