The way I do, is to first install Windows 11 tiny beta1 (you can google it). It's compact, good for any old (as well as new) PCs. It's stripped of almost every pre-installed Microsoft app,
then repair-install using latest Windows 11 version (23H2/24H2? ). this will make Windows 11 updated...
my Asus ZenBook had a similar problem. and its battery was dead soon.
now it's powered up by its adapter any time. an option is to replace its dead battery.
HP mimi PC family (HP 800 mini G3-G6) offers more than what you request, Windows 11, three video outputs (VGA HDMI DP. I am using HDMI and DP. the VGA port can be replaced to HDMI, DP or USB per HP specs).
It's a powerful PC, in mini form.
on ebay, HP mini 800 G3 can be $30 to $60. (example...
my install list
discord
FF <-- optional
notepad++
Excel2010, Excel 97 <-- both
python
Thunderbird
discord is my must-be. :-) Firefox is optional.
it's Data PC. therefore, e-macro and python are must-be. notepad++ is an easy tool for coding.
(macro runs slow on cloud-based Office, hence forget...
@glasskuter
I couldn't remember what right I did on my HP PC when it had a similar sleep problem (shutdown/sleep).
But the procedure I have done, just google then tried one-by-one. couldn't remember which step was right one. One of them was working. (kind of hardware related, wake mode of NIC...
On PC, does it run MSFT account? or it has local account besides?
In my early time of Windows 11 OS, no local account openned. my PC run into a similar problem often (several times a day). since open my local account, no this problem any more. A good reason for me to setup local account on the PC.
my point, only internal use of the NVMe SSD is worth.
any external use, then its port speed will be a bottleneck. (in your case, where is the USB3 port of external enclosure).
(you can try a USB-C port, 10Gbps, of enclosure. but it's still much slower than NVMe Gen3 speed. no need to say Gen4...
One of my old PC got a similar issue years ago. downgrading to Win7 or XP OS install, still freezing/crashing. It could be alive only less than 20-30 minutes. Inspecting the motherboard, a cap was suspicious (liquid leaking).
you can inspect your motherboard, to see if any part broken or cap...