Question PC Cpu and Disk at 100 while gaming and while doing small tasks.

Aug 31, 2019
Hello, I'm new to this forum, not sure is this the correct section.

PC specs:
Windows 10 home
Intel i5 6400
Evga GTX 1060 6gb
16GB Ram
2TB WD HDD (200gb left)
200 internet speed

I've been having these issues for a while where my pc runs cpu and disk at 100. It's quite slow and takes forever to do simple things like using google chrome. My main annoyance, is when gaming, mainly Fortnite, it lags very hard my first few games, and then stutters for rest of my playing session. I never really get a smooth consistent 60fps, and even sometimes the textures dont load in for a while lol. I play on 1920x1080 w/vsync on high settings. I've also get the same lag on medium, and I dont feel like I should have to play on low with the specs I have. Another weird thing that happens is when installing a update to fortnite for example, it could be 300mb and take 90mins!

I'm not sure what to do, maybe get a SSD?

I think its been like this for a year or two now, but I would finally like to deal with it.

Please let me know if I left out any info that would help :)