Had it done yesterday and it took away over 50 gigabytes of RAM. 
https://www.cnet.com/how-to/how-to-...ter-updating-to-windows-10-april-2018-update/
Using the link above I got back about half of it but honestly WTH? Anyone else come across this?

https://www.cnet.com/how-to/how-to-...ter-updating-to-windows-10-april-2018-update/
Using the link above I got back about half of it but honestly WTH? Anyone else come across this?