How to stop computer from sleeping windows 8
Scroll down to "Shutdown settings" and uncheck the box for "Turn on fast startup". Click "Choose what the power buttons do" from the column on the left. Developed for Windows 10 (8, 7, Vista, XP). To disable Fast Startup, press the Windows Key + R to bring up the Run dialog, type powercfg.cpl and hit Enter. Download and try Outbyte PC Repair right now to see what it can do for your Windows.
HOW TO STOP COMPUTER FROM SLEEPING WINDOWS 8 FULL
If Fast Startup is enabled, booting up from a full shutdown with your UAD-2 FireWire device connected to the computer and powered on may cause issues such as erroneous "sleep mode" error messages and disabled UAD plug-ins.
If using a UAD-2 FireWire device it is recommended to disable this feature for better compatibility.
However, it prevents the computer from performing a regular shutdown and can cause compatibility issues with devices that do not support sleep mode or hibernation. In the Local Group Policy Editor, go to Computer Configuration > Administrative Templates > System > Power Management > Sleep settings. Fast Startup is a Windows 10 feature designed to reduce the time it takes for the computer to boot up from being fully shut down. Open the advanced options in Windows 8 by holding the Windows key on your keyboard and the letter X.