Trying to go to power save mode only switches to login screen

Hello OlliM,

Ok, in that case follow the steps given below and hopefully one of the steps should fix the sleep mode issue :

BEFORE STARTING:

Make sure you have the latest device drivers and BIOS installed for your motherboard
.
NOTE: A out-of-date video driver or other drivers are sometimes the source of sleep mode problems. It is best to keep these up to date to resolve issues found with them.     


STEP ONE:
Check Your Mouse and Keyboard

NOTE
      A wireless mouse and keyboard can cause your computer to wake up for no apparent reason, and to not wake up from sleep mode when you press a key or move the mouse. This may also cause your screen saver to not work to. If the computer is using an optical mouse, changes in light can cause the computer to wake.     

    For a USB Mouse or Keyboard:

        1. Check the BIOS settings to make sure that you have a Legacy USB option enabled.

    For a Wireless Mouse or Keyboard:

        1. Unplug the receiver on the back of the computer and test.

        2. If sleep or hibernation works now, then try:

            A) Download new drivers for you wireless mouse and test again with the receiver plugged in.
            NOTE: Always get your drivers from the source, never from Windows Updates. They do not work properly sometimes.

            B) Disable the wireless mouse and/or keyboard wake up option in Step Five below. If you have to disable both of them, then you can wake the computer up by pressing the power button on the case.

            C) Time to get a new mouse and/or keyboard that is compatible with Windows7.

    For a Optical Mouse:

        1. Try not to have direct bright light shining on the sensor or moving around it.


STEP TWO:
Check Settings in Power Plan Options

NOTE
      Power settings control the computer’s ability to go into and come out of sleep/standby mode.     

    1. Open the Control Panel. (Classic View)

    2. Click on the Power Options icon.

    3. Click on the Change plan settings link under your power plan.

    4. Click on Change advanced power settings.

    5. Click on Change settings that are currently unavailable.

    NOTE: This will allow any Power Options that are grayed out to now work and not be grayed out.

    6. Recommended Settings for Sleep -

    NOTE: Sleep saves any open documents and programs to memory only, and then puts the computer into a low-power state.
    WARNING: If you lose power to the computer, you will also lose what is in memory.

        Main Setting    Sub Setting    Recommendation
        Hard disk         Set to at least 1 minute before the computer is set to sleep.
        Sleep    Sleep after    This is for the computer. Set to at least 1 minute after Hard disk and Display is set to turn off.
        Sleep    Allow hybrid sleep    Set to Off.
        Sleep    Hibernate after    Set to Never.
        USB settings    USB selective suspend setting    Set to Disabled.
        Power buttons and lid    Start menu power button    Set to Sleep.
        PCI Express    Link State Power Management    Set to Off.
        Display    Turn off display after    Set to at least 1 minute before the computer is set to sleep. Usually set this as the same as the Hard drive is set to turn off.
        Multimedia settings    When sharing media    Set to Allow the computer to sleep.

    7. Recommended Settings for Hybrid Sleep -

    NOTE: Hybrid sleep saves your open documents and programs to memory and to the hard drive, and then puts the computer into a low-power state. After the Hibernate after time you set, it will then put the computer into hibernation.
    WARNING: Use the same Recommended Settings for Sleep in step 6 above, except for these changes:

        Main Setting    Sub Setting    Recommendation
        Sleep    Allow hybrid sleep    Set to On.
        Sleep    Hibernate after    Set to at least 1 minute after the computer (Sleep after setting above) is set to sleep.

    8. Recommended Settings for Hibernation -

    NOTE: Hibernation is a power-saving state that saves your open documents and programs to the hard drive and then turns off your computer. If Hibernate after is not listed, then make sure that you have the Hibernation File enabled or restored to. It is by default unless it was cleaned in Disk Cleanup

    WARNING: Use the same Recommended Settings for Sleep in step 6 above, except for these changes:

        Main Setting    Sub Setting    Recommendation
        Sleep    Sleep after    Set it to Never.
        Sleep    Allow hybrid sleep    Set it to Never.
        Sleep    Hibernate after    Set it to at least 1 minute after Hard disk and Display is set to turn off.
        Power buttons and lid    Start menu power button    Set it to Hibernate.

    9. Click on OK to apply

    10. Just exit out the other windows.

        power_options.jpgoptions-1.jpg

    11. Test sleep mode. If it is still not working correctly, then continue to the next step.


STEP THREE:
Check Sleep State in BIOS

NOTE
      Make sure you have the latest Video drivers and BIOS for your motherboard. Read your motherboard manual to see if you have any jumpers or settings that sets different sleep voltages for USB.     

    1. Open the Start Menu.

    2. In white line (Start Search) area, type cmd and press Enter.

    3. In command prompt, type powercfg -a and press Enter.

    NOTE: This will give you a report of the available sleep states for your computer and will attempt to report reasons why sleep states are unavailable. You will want to see if the ACPI S1 and/or S3 is listed.

    4. Restart the computer into the BIOS settings, and go into the Power Management section in the BIOS.

    NOTE: Usually you will press the F2 or Delete key as soon as your computer starts booting to enter the BIOS.

    5. Make sure ACPI mode: S3 or S1 is enabled.
    WARNING: S1 (Sleep) and S3 (Hybrid deeper sleep). If you are running an incompatible video card, some or all of these states below may be unavailable. If one of the settings causes your computer to not wake back up afterwards, then reset the CMOS on the motherboard and restart the computer, or unplug the computer for a moment and plug it back in, and reset the BIOS back to the factory default settings.


    6. Make sure Wake on Ring and Wake on Lan are disabled.

    NOTE: This will help with keep the computer from waking up on it's on.

    7. Save the BIOS setting changes and exit to restart the computer.

    8. Test sleep mode. If this does not help, then move on to the next step.

BIOS DISCLAIMER :
Modifying BIOS/complementary metal oxide semiconductor (CMOS) settings incorrectly can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the configuring of BIOS/CMOS settings can be solved. Modifications of the settings are at your own risk.


STEP FOUR:

NOTE
      This will give you a list of items that woke up the computer last that may help narrow down what is waking up the computer.     

    1. Open the Start Menu.

    2. In white line (Start Search) area, type cmd and press Enter.

    3. In command prompt, type powercfg lastwake and press Enter.

    NOTE: Notice that I had USB\ROOT\HUB listed. For me, this would be the USB wireless mouse. Your list results will vary of course.

   


STEP FIVE:
To List, Enable, or Disable Device Names Currently Configured to Wake Up the System From any Sleep State

NOTE
      This will show you a list of devices that are able to wake up your computer to help you narrow down a device that may be responsible for waking up your computer. It does not mean that these devices are the ones that woke up your computer though, just that they are able to.     

    1. Open a elevated command prompt.

    2. To List Devices that Can Wake Up the Computer -

        A) In the command prompt, copy and paste in bold:
        powercfg -devicequery wake_armed and press Enter.

        B) Go through the list of devices to see if you have one you do not want to wake up your system.
        EX: A Network Device (Modem, Ethernet, etc.) or Wireless Mouse.

        C) If you found a device that may be causing the problem, then check with the STEP SIX section below first to see if you can disable a wake up option for the device in it's Power Management settings in Device Manager to test to see if that is it before proceding.

    3. To Disable a Listed Device From Waking Up the Computer -

    NOTE: Only do this step if you cannot do it from STEP SIX below using Device Manager instead.

        A) In the elevated command prompt, type below in bold and press Enter.

        WARNING: Be sure to write this device name down in case you want to be able to enable it again in step 4. Once you disable it, it will not be listed again in step 2A until enabled again.

            powercfg -devicedisablewake "exact name of device listed in step 2A"

        NOTE: For example, if I wanted to disable the listed (step 2A) High Definition device (HDAC), then I would type powercfg -devicedisablewake "High Definition Audio Controller" and press enter.

    4. To Enable a Listed Device Again to Waking Up the Computer -

    NOTE: Only do this step if you cannot do it from STEP SIX below using Device Manager instead, or you have done step 3 above with the device.

        A) In the elevated command prompt, type below in bold and press Enter.
        WARNING: Be sure to write this device name down in case you want to be able to enable it again in step 4. Once you disable it, it will not be listed again in step 2A until enabled again.

            powercfg -deviceenablewake "exact name of device listed in step 2A"

        NOTE: For example, if I wanted to reenable the High Definition device (HDAC) that was disable and removed from the list in step 3, then I would type powercfg -deviceenablewake "High Definition Audio Controller" and press enter.

    5. When done, close the elevated command prompt, and test sleep mode.



STEP SIX:
To Disable or Enable the "Allow this device to wake the computer" Option for a Device

NOTE
      

    * Check your Network device. Network activity can cause the network hardware to wake the computer, especially when the network is always on (like cable and DSL connections).
    * High Definition Audio, if listed in STEP FIVE, may also rarely cause the computer to wake from sleep mode. You can disable (only option available) the device as a test in Device Manager to see before putting the computer to sleep. Just enable it again if it is not the problem.


    1. Open the Control Panel. (Classic View)

    2. Click on the Device Manager icon.

    NOTE: You need to be in a Administrator account.

    3. Click on Continue in the UAC prompt.

    4. Open the device's list that you want to change.
    EX: Network Devices

    5. Right click on the device name and click on Properties.
    EX: Network Devices


    6. Click on the Power Management tab.


    7. Uncheck Allow this device to wake the computer.

    NOTE: To Enable it again, just check this instead. If you need to disable the wireless mouse and keyboard, then you can wake the computer by pressing the power button on the case.

    8. If listed, check Allow the computer to turn off this device to save power.

    NOTE: This will turn the device off when the computer goes into sleep mode.

    9. Click on the Advanced tab.

    NOTE: This is only for the Network device.


    10. Check the boxed in red Property: items below to see if they are set to Disabled in the Value: area.

    NOTE: This area may be different for your particular network device since it is based on the driver, but it should be similar. You will be looking for any Wake on type property options listed.

    11. Click on OK to apply and close properties window.



STEP SEVEN:
Check the Screen Saver

NOTE
      Some screen savers can interfere with the computer’s ability to go into and come out of sleep/standby mode. Disabling or changing the screen saver may resolve the problem.     

    1. In the Screen saver settings, select an alternate screen saver, or set it to None, then click on OK.

    2. Test sleep mode.



STEP EIGHT:
Check Startup Programs
NOTE
      

    * Many software components start up automatically with Vista and run in the background. Some of these programs may not be necessary, and can interfere with the sleep/standby mode. For troubleshooting purposes, use the following steps to prevent programs from starting up with Windows 7 to see if this is the issue.
    * If you are having these problems, you can avoid from having to do this completely if you logoff and put the computer to sleep from within the logon screen.

    

    1. Open the Start Menu.

        A) In the white line (Start Search) area, type msconfig and press Enter.

        B) Go to step 3.

    OR

    2. Click on All Programs, Administrative Tools, and System Configuration.

    3. Click on Continue in the UAC prompt.

    4. Under the General tab, dot Selective startup.

    NOTE: When done with the test, dot Normal startup, to return to the default settings before the test, and click on OK.

    5. Uncheck Load startup items and click on OK and restart the computer.

    NOTE: You will get a notification that you made changes to the Startup programs in the bottom right Notification area. Just ignore it for now. It will go away when you put it back to Normal startup after you finish.

    6. Test sleep mode.

    7. If unchecking (disabling) Load startup items fixed the sleep problem, then enable one startup item at a time and test to see if the problem occurs again. Continue enabling startup items, until you find the program that is causing the problem. Remove or update the problem program.

    NOTE: See Method One or Two here: How to Check and Change the Startup Programs in Vista

        A) When done, change the setting back to Normal startup (step 4).

    8. If unchecking (disabling) Load startup items did not resolve the sleep problem, then set it back to Normal startup (Step 4) and go to the next step below.



STEP NINE:
Check Scheduled Tasks for Programs

NOTE
      Sometimes a program will have something scheduled to run that will wake the computer up. Try turning them off temporarily to see if it resolves the problem.     

    1. Check in the suspected program settings to see if there is a feature that may wake the computer.

    NOTE: Sometimes it can be the Auto-Update feature in the program.

    2. Check Task Scheduler for items that are set to Wake-Up the computer to perform it's action.

        A) Expand out the list in the left pane and click on the suspect item's folder. Double click on the task in the middle pane.

        B) Click on the Conditions tab.

        C) Uncheck the Wake the computer to run this task box.

    3. Check Windows Automatic Updates settings.


STEP TEN:
Windows Sidebar Gadget

NOTE
      Sometimes a Windows Sidebar Gadget may cause the computer to not sleep on it's own.     

    1. Turn off Windows Sidebar as a test to see if your computer will enter sleep on it's own now.
    NOTE: Sometimes, you may need to restart the computer afterwards as well.

    2. If it does, then turn Windows Sidebar back on and turn off each Gadget one by one. Test sleep again after each one until you find the one causing the problem.


STEP ELEVEN:
Check Motherboard Jumpers

NOTE
      A few motherboards have been reported has having jumpers on the board for certain functions (ex: USB device wake-up) that may need to be enabled or disabled.     

    1. Pull out or download your motherboard manual, and check for any such jumpers.

    2. If you have one that is related (ex: USB device wake-up), then test sleep mode inbetween toggling the jumper on and off.


STEP TWELVE:

Reset Print Spooler

NOTE
      This may help if your computer will sleep fine manually, but will not sleep automatically or not go to sleep at all.  

    1. Open Services, and temporaily Stop the Print Spooler service.

    2. Open the Start Menu and type %WINDIR%\system32\spool\printers in the search line and press enter, then delete all files in this folder.

    3. In Services, Start the Print Spooler service. Close Services window.

NOTE

      If the issue persists, the installed printer driver may not be compatible or corrupted. Check the printer manufacturer's website to download and install the latest Windows 7/Vista compatible driver for it.     


STEP THIRTEEN:
Try System Restore

NOTE
      If sleep/standby mode previously worked, attempt a system restore back to a time when it worked. If the problem has always existed, skip this step.     

    1. Save any open files and close all programs, then backup anything that you do not want to lose to be safe..

    2. See: How to Do a System Restore in Windows 7 : http://windows.microsoft.com/en-US/windows7/products/features/system-restore

    NOTE: If System Restore resolves the problem, the problem is probably caused by software that was installed after the restore point date.


Regards,
Azeez Nadeem - Microsoft Support