lagg-hang-explorer restart-black screen

[sergio1990]

CPU: AMD Ryzen 7 1700

RAM: G.SKILL Flare X (for AMD) 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 2400

MB: ROG Strix B450-F GAming Rev1.xx 

Bios: 2903

NVME: samsung 970 evo 250GB with EKWB EK-M.2 NVMe Heatsink

HDD: seagate 1TB SSHD

USB HDD: seagate 10TB USB 3.0

Cooler: cryorig ultimate r1

GPU: ZOTAC GeForce GTX 1060 AMP 6GB

PSU: EVGA 500 B1, 80+ BRONZE 500W

OS: windows 10 pro version 1903 (OS build 18362.657)

virus protection: bitdefender total security

hello everyone actually this is my first post here hope it find it's way for a solution. 

I barely game on this PC what I use it for is manly browsing or watching you tube, net flex, and actual media on my storage drive and from time to time I play "Deliver Us The Moon"

so when I open like 30 or 40 tabs on chrome or any browser chrome hangs like hell but my RAM is about 60% usage 

if there's a GIF pic the hole scream blinks black not every time but it happens 

if i starts to forward or click Page down while opining media on MPCHC suddenly my hole PC hangs and nothing responds even num lock hangs but I can use CTRL+ALT+DEL

Netflix feels like shit even if it's the only thing open on my pc I scroll down and wait a sec to make it when i stop the cursor on a thumbnail it may take 5 sec to interact 

Photoshop with a normal 1080P pic crash every 5 min

tip: when I play a game my PC is butter smooth no lag no hangs nothing with ultra high details 1080P 

many time the whole explorer like desktop start menu bar and all browsers just restart suddenly and reopen again 

for what I know this RIG is overkill for what I do.