Alright, here is the solution:- Do not restore your system or reinstall Win!- Make sure Intel Speed Step is disabled in BIOS.- You need modify the Modern sleep registry by typing this commande in CMD or powershell and restart: reg add HKLM\System\CurrentControlSet\Control\Power /v PlatformAoAcOverride /t REG_DWORD /d 0 - Then add the missing power plans by typing these commandes in CMD or powershell:   Restore Power saver power plan:powercfg -duplicatescheme a1841308-3541-4fab-bc81-f71556f20b4a   Restore Balanced power plan:powercfg -duplicatescheme 381b4222-f694-41f0-9685-ff5bb260df2e   Restore High Performance power plan:powercfg -duplicatescheme 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c   Restore Ultimate Performance power plan:powercfg -duplicatescheme e9a42b02-d5df-448d-aa00-03f14749eb61That's it.Conclusion: All of this happened after a forced win update, updating the BIOS and few registeries. What happens is when speed step is enabled, win hides all the power plans and leave only one (usually Balanced) available.By the way, doing this will help you to get back all the advanced option in power management. [IMAGE] [IMAGE] [IMAGE]    
Hello everybody, It's been a couple of days that I'm missing my high performance profile. Usually I don't use Windows power profiles, I use the power plans in Alienware, but now Windows selec "Power" by default and i'm missing "high performance".I can temporarily fix the issue by using the F7 key (G), but as soon as I close Alienware, Windows selects "Power" and "High performance" goes missing.I have tried:- Registry edit- Powershell- New profile in Windows power plansHas anybody experienced this recently?Any ideas?Cheers   [IMAGE][IMAGE] [IMAGE]
Dell G5 5590 "High performance" missing