Prova a vedere se sono abilitate quelle opzioni che ti ho indicato nella parte in rosso.
Oppure c'è qualcosa di diverso nelle impostazioni del bios, visto che hai degli altri pc uguali fai il confronto con quelli.
One way of getting really fast boot times is to put your machine into hibernation instead of powering it down at the end of the day. Hibernation mode causes the current memory contents to be written to file, after which the computer shuts down. When your machine is restarted, a Resuming Windows message is displayed instead of the usual Starting Windows message, and the contents of the hibernation file (Hiberfil.sys) is read back into memory in only a few seconds, after which you are prompted to type your password to unlock your desktop.
Hibernation is supported by ACPI-compliant hardware but must first be enabled on the Hibernation tab of the Power Options utility in Control Panel. Once it's enabled, you can send your machine into deep sleep anytime by clicking Start -> Turn off computer -> Hibernate, assuming you're using the Welcome screen instead of the classic Windows log-on screen.
One issue with hibernation can come up if your password is configured to expire periodically. The problem is that if your password expires while your machine is hibernating, you can't bring it out of hibernation to reset your password. To work around this, boot in safe mode, log on using the local Administrator account, and change the password for your ordinary user account, then reboot the machine.
Quando i molti governano, pensano solo a contentar sé stessi, si ha allora la tirannia più balorda e più odiosa: la tirannia mascherata da libertà.