RAM/CPU overload in 4K videos

[wolf100]

When 4k videos are played on YT they are pretty stuck, and load on every 3-4 sec. Cant play one video smooth with NO lagging. CPU get at 95%-100% also RAM is FULL, and also Disk sometimes get to 100%.. I tried 3421342 combinations but nothing seems to work. Im tyred,confused and dont know what to do. I've changed Ram memory lot of times but seems the problem is something else,also for disk at 100% ive done Local disk C format,but also nothing has changed. Maybe Im using a very low amount of RAM for my 64x win 10, but i have no experience in computers so i dont know much. I buy the pc so is new and it has warranty and i CANT open my pc case, because it will end my warranty. Please help me im despered

 

[popatim]

It says you have 4GB of ram, is that how much you were supposed to have? If not, contact the vendor.

 

[wolf100]

Yes i was supposed to have that, I assume now that is too low, its says DIMM 4 GB DDR4 2400Mhz Geil CL16 Bulk. I must say that at the beginning videos played smooth. I dont know from where problem started, but its very annoying. How much RAM I need to have for this configuration is 16GB enough? If someone new how to handle this, is it some magic card that can be pulled from nowhere.

https://i.imgur.com/haTXQWN.png

system:
DIMM 4 GB DDR4 2400MHz Geil CL16 Bulk
MB MSI H110M PRO-D LGA1151 DDR4 2133MHz SATA3USB3.1 GBit LAN DVI
Gigabyte PCX GeForce GT710 Low Profile 2GB DDR5 HDMI/DVI
CPU Core i5-7500 Kaby Lake Quad 3.4GHz LGA 1151 6MB BOX
HDD 3.5' 1TB Toshiba SATA3 7200rpm 32MB

 

[popatim]

This new image shows you have 720mb of available ram. That is really low and windows will start using your harddrive as memory and probably accounting for most of your issues.I would suggest upgrading to a minimum of 8gb. More then 4gb of ram would require a 64 bit windows. If this is not what you have then you will need to reinstall windows 64bit to make use of the extra ram. There is no upgrade path from 32bit sadly.