My Dell Latitude E7440 won't boot up
I've been using this PC for 2 years now and from time to time I've always encountered issues I don't even understand the first time it was my fan and processor which both got replacement and the PC worked well. Now this time it won't boot after a particular incident from day before. I was using my PC Normally to test a program that I coded all of sudden the screen started to glitch out and and my PC froze so then I decided to hard restart it but upon turning it on the PC never booted up it only showed a blinking light on the power sign I don't know what to do whether to replace the battery or take out the RAM or even replace the RAM entirely I don't even know if this is the result of a memory leak everything is too confusing and I haven't gotten the slightest clue as to what to I don't want to risk opening my PC I just want to know what to tell the person that's going to repair my system to do