Hey guys,
So the past few days our SQL server works up until I leave at 7pm and then every morning I come in and our in-house ERP crashes at some point during the night. The server is whoofully under equipped with only 8 GB's of RAM, but has two Xeon's with 24 cores total; I know it need more memory like 32 GB at-least! - looking for a quick fix and the swap file and deleting the 13 GB's of Windows Update file in the 'softwaredistribution' folder solved that (just turned off windows updates, make it a .old and restart Windows updates it automatically made a new folder and deleted the .old folder and whalla, bloody windows downloaded them all!!!)
Today I made a change and re-sized a whoofully too large data partition and made 40 GB Swap partition for only swap since it was on C: (in the picture below) and had less that 2% free space; the server was performing like dog sh*t! - so now that I got the swap file moved, and then rebooted the server is performing way way better since the C: drive was very defragged so that wasn't helping.
Now the one thing I have a question about, can I defrag the

partition (in the picture) since its @ 97% but this is were the SQL server is installed with it's databases. I've seen some database be at 99% fragmentation on a SQL server but I'm pondering if that's normal or if it should be defragged? - ....before I presume figured I see if any of you database engineer have some light to shed on the matter.