So this is a story all about how:
I went from my brother being asked to clone the disk of old laptop to a new one. My m.2 ssd being held in with duct tape because of it and me having to run a tar command that took over 5 hours to complete.

So my bro got asked by a friends mom to help her with "PC Problems". In short the old laptop was barely useable and they ordered a new one on the reccomendations of my brother. Turns out the laptop he recomended shoud have had a 1tb hdd in it. Instead it had a 256gb m.2. Note: The old disk was 500GB.
So cloning wasnt possible. He then told me, that they also bought a regular sata ssd which was supposed to go in instead of the non present hdd. So I <-Want to emphasize on this! went to work.
Ordered a ssd in the right form factor.
Made a disk image of the old HDD.
Had to drill out the screw holding in my m.2 ssd as it was stuck.
Its now held in with a piece of kepton tape.
Wrote old disk's image on new disk.
It doesnt boot in new laptop.
Spend an evening trying to rebuild boot partitions.
Fuck it, lets install windows 10 (instead of 7) and copy all the shit over manually!
Lets buy office for 30$ on g2a as it would be a pain in the ass to explain the that its normally a subscription.
Previous rant happend.
Brought them the laptop yesterday telling them I did all the work.
I collect the ssd they ordered explaing i ordered the correct one and would take tis one for me.
Still had the 500GB img file of the disk and wanted to compress it in order to put some data back in place.
The tar command took over 5 hours to complete! I havent checked on it yet as I went to sleep.