Fresh Installation of Windows 7 using ISO and OEM Key on Toshiba L450

How to create USB rescue media

An external drive is USB, but a flash stick is normally not large enough. C is 50gb+ now.

If you want to use your HD as external storage USB later you can save the image to it, swap the drives, put HD in external USB case then access the image on it from booted Macrium USB stick.

When I changed my laptop HDD for an SSD, I put my HDD in this case which is excellent: Amazon.com: Inateck 2.5 Inch USB 3.0 Hard Drive Disk HDD External Enclosure Case with usb 3.0 Cable for 9.5mm 7mm 2.5" SATA HDD and SSD, Tool-free HDD Installation, Compatible With Windows 2000/ XP /Vista/ 7/ 8, Mac OS 9.1/10.8.4: Computers & Accesso

OK i managed to borrow an external HD so will have a go...

Ok I've booted up using a USB and selected the image from the external HDD, and after a hitch when it was looking for the boot manager I downloaded the Win PE ISO again onto the USB and fiddled around and now the Macrium screen has booted and it allowed me to choose the Image off the external HDD to put onto the SSD. The only thing I forgot was to adjust the settings to make C take up the full SSD - I forgot to check the settings there - perhaps I can go back and do it later or do I have to do the whole process again? The imaging is now at 16% - I clicked on 'verify' image also - sounded reassuring - hopefully it will all work...

The SSD is up and running - I haven't sorted out the alignment issue yet but hoping to look at it. Looking at the new Disk Management page and the Macriam analysis I can see I may have missed the chance to extend C to take up the whole SSD - forgot that step. Perhaps should re-do the image transfer or is there a way to adjust the SSD at this point?

You can resize the partition to use the whole SSD after restoring the image to the SSD, you don't have do the whole process over.
You can do it with Windows Disk Management, or Partition Wizard.
I prefer to not modify a disk/partition structure on the HD/SSD with the OS while Windows is running.
I prefer to use Partition Wizard bootable CD for making changes (i'm overly cautious), but expanding the partition with Disk Management should be fine.
Bootable Partition Manger | MiniTool Partition Wizard Bootable Edition

Ah ok i chose to extend volume on Disk Management to the maximum amount it said was available. It now looks like this (below) - but there is oddly a 400MB bit that is 'unallocated'.
I forgot to defrag before doing all this - but the HDD was defragged about six months ago so hope that isn't too bad.
Now trying to follow these instructions SSD Alignment but I get the message at the bottom.

If you can't resize with Disk Management to use the 401 MB unallocated space, use PW bootable.
I would verify alignment before resizing to use the 401 MB unallocated space.
If it's not aligned correctly, post a screen print with alignment info.
See SSD Alignment

You don't want to defrag an SSD.
Make sure auto defrag is turned off for the SSD.

Ok I turned off the defrag, and apparently the HDD was freshly defragged yesterday automatically i guess, so 0% fragmentation.
I can't follow the instructions for SSD Alignment- I get the error message as per below in Diskpart when I try to 'clean' Disk 0:

I haven't reviewed this whole thread, but you wouldn't run CLEAN in diskpart if you wanted to check alignment. That's the last thing you'd want to do.

Try list part after selecting the disk.