Acer nitro n50-600 desktop power up problem

Dmsnw
Dmsnw Member Posts: 1 New User
edited July 2021 in Nitro Gaming
Hi all, hope this is the right place to post.

So I've had this acer nitro n50-600 desktop pc for around 14 months now.
most of the time I've had problems with restarting it, restart will not power off and instead stay in some sort of sleep mode.

Sometimes when i need to power off for update and try power on again, it doesnt boot up so ive got to restart a few times to get it to work, sometimes by removing power supply and holding button for 30secs and leaving it for 5mins or so before trying again.

The latest problem i have is that yesterday it didnt want to boot up at all, tried numerous times and nothing. Tried all sorts of ideas from forums and so on. The next day i thought id give it a go and it booted up with bois screen so carried on to desktop, backed up all my files, then had to pop out so i turned it off, when i got back i turned it on with no problem then windows wanted to do an update so i let it but when shutting down it done the same and now im back at same problem again, black screen/no mouse or keyboard working on bootup, speakers light up so i know the usb have got power on start up but cant even get into bois or nothing as it just blank. Fans work, red light comes on, sometimes only the red 'v' light and not the actual white power button light for some reason. 

Anyone got an idea of what this can be?, im thinking some sort of hardware or os problem as ive got it to work when it feels like it...
tomorrow if i can get it back on again i might do a factory reset and reinstall windows, can i do this without any windows codes.. As nothing came with pc

Any help much appreciated

Things that ive tried 
Removing all cables, powering up 3-4times
Cleaning inside case/not that dusty to be honest
Making sure all connectors are secure
Reconnecting gpu/psu/hardrive/ram/ etc. 
Replacing cmos battery

details below:
Windows 10 home 64bit
9th gen intel core i3 processor 9100
Nvidia geforce gtx1650 4gb
4/4/16/16 memory
1td hardrive
16gb intwl optone memory