Can't wake after sleep mode

[Globalis]

Hello,

i have the same issue with 3 computers who are running with the same product : HP ProDesk 400 G5 Desktop Mini.
It's impossible to wake them after sleep mode. (I can't disable the power saving, because it is locked by a GPO.)

Model : HP ProDesk 400 G5 Desktop Mini
OS Version : 10.0.19042.1288
Bios Version : R23 Ver. 02.09.00

Model : HP ProDesk 400 G5 Desktop Mini
OS Version : 10.0.14393.2214
Bios Version : Ver. 02.09.00

Model : HP ProDesk 400 G5 Desktop Mini
OS Version : 10.0.19043.1110
Bios Version : R23 Ver. 02.09.00

Below, what i tried :

- Update Bios Driver and others (from the hp support assist software)
- Hardware testing with "HP PC Hardware Diagnostics Windows" --> No issue found
- Windows Update
- Monitor and ajusting the CPU Fan with "Speedfan" tool
- "powercfg.exe /hibernate off"  command
- https://support.hp.com/in-en/document/ish_3046046-2885219-16
- "sfc /scannow" command
- "chkdsk" command
- "powercfg -h off" and "powercfg -h on" commands
-  Power management diagnostic from control panel
- Disabling all services except Windows and antivirus

Nothing worked 😞

Can you please help me ?
Thank you verry much !

[VH2000 · Accepted solution]

>> OS Version : 10.0.19042.1288 that is very old

right now 19044.1381 is the current version

If your GPO is locked, go to your admin to change that.