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Troubleshooting sleep and hibernate issues in Windows 8

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This document applies to HP and Compaq desktop and notebook computers with Windows 8.
NOTE: If you are not using the latest version of Windows 8, some graphics and information in this document may vary. You can get the latest version from the Microsoft Store.

The computer will not wake up from sleep or hibernate mode

Restarting your computer erases all information in the computer's memory, which may restore functionality. Before performing these steps be sure to restart your computer to attempt to resolve the issue.
If you have a notebook computer that cannot return from sleep mode, first make sure it is connected to an AC power source and the power light is on.
Skip this step if the computer does not enter sleep mode or if the computer wakes unexpectedly.
Follow these steps to enable your keyboard to wake your computer from sleep mode:
  1. At the Start screen type, Device Manager and then select Device Manager from the results list.
    Figure 1: Search results for Device Manager
    Search results for Device Manager
  2. Click next to Keyboards and double-click the name of your keyboard.
    Figure 2: Keyboards selection in the Device Manager window
    Keyboards selection in the Device Manager window
  3. If the Power Management tab is available, proceed to the next step.
    If the Power Management tab is not available, click the Change Settings button if it appears below the Device status box. The same Keyboard Properties window opens with the Power Management tab available.
    If you are prompted for an Administrator password or confirmation, type the password or provide confirmation.
  4. Click the Power Management tab and make sure that the box next to Allow this device to wake the computer is checked.
    Figure 3: Allow this device to wake the computer selection in the Power Management tab
    Allow this device to wake the computer selection in the Power Management tab
  5. Click OK. Test to make sure that the keyboard can now wake the computer. Continue using these steps if the computer still cannot wake from sleep mode.
Some drivers can be downloaded from HP and others can be downloaded from Microsoft using Windows Update. Having the most current BIOS version and drivers installed on your computer can resolve several issues. To find the BIOS and driver updates available for your computer, check, in the following order, the following locations:
  • For instructions to update the BIOS of your computer, see the HP support document, Updating the BIOS .
  • For information and instructions on downloading and updating software and drivers, see HP support document, Downloading or updating software and drivers for HP computers .
  • For information about using Windows update for your computer in Windows 8 see the following steps:
    1. From the Start screen, type control panel to open the Search charm, and then select Control Panel from the search results.
      Figure 4: Search results for Control Panel
      Search results for Control Panel
    2. Click System and Security.
      Figure 5: Control Panel with System and Security selected
      Control Panel with System and Security selected
    3. Click Windows Update in the System and Security window.
      System and Security with Windows Update selected
    4. Click one of the following options, if presented, on the Windows Update window:
      • Important updates installs security updates or updates that are important to the health of your computer.
      • Optional updates allows you to select driver updates or updates that are optional. It is a good idea to download and install optional driver updates, especially if you have changed the Windows edition on your computer.
      Figure 6: Windows Update
      Windows Update with Important and Optional update selections called out
      The following options are available:
      • Control Panel Home: takes you back to the main Control Panel.
      • Check for updates: checks for updates
      • Change settings: enables you to set the computer to automatically install updates
      • View update history: checks to ensure that all important updates were installed.
      • Restore hidden updates: shows the restored updates so they can be installed.
      • Installed updates: shows installed updates; you can uninstall or change the installed updates.
      • Add features to Windows 8: shows a User Account Control box verifying if you want to allow the following program to make changes to this computer.
HP personal computers with Windows come with HP Support Assistant installed. HP Support Assistant can be used to automatically find and install the latest updates for your computer. If needed, you can install the latest version of HP Support Assistant from the HP Support Assistant site (in English).
Follow these steps to open the HP Support Assistant and check for software and driver downloads:
  1. Double-click the HPSA desktop icon or select HPSA from the Start screen.
  2. In HP Support Assistant, click Updates and tune-up.
  3. Click Check for updates now.
    HP Support Assistant checks for the latest updates from HP.
  4. If new updates are available, make sure the checkbox next to each update is checked and click Apply to begin downloading and installing the updates.
    If no new updates are available, click Finish.
For more information about configuring and using HP Support Assistant, please refer to the following support documents:
You can run the Power troubleshooter to adjust your computer's power settings. The Power troubleshooter checks things like your computer's timeout settings, which determine how long the computer waits before turning off the monitor display or entering sleep mode. Adjusting these settings can help you conserve power and extend your computer's battery life.
To open the Power troubleshooter, use the following instructions.
  1. At the Start screen, type Control Panel.
  2. In the Search field type troubleshooter.
  3. Click Troubleshooting.
  4. Under System and Security, click Improve power usage.
    If asked for an administrator password or confirmation, type the password or provide the confirmation information.

The computer wakes from sleep mode unexpectedly

If your computer wakes from sleep mode unexpectedly, see the information in this section to prevent hardware devices from waking the computer.
Some device settings can cause the computer to return from a power savings state unexpectedly. This can cause the computer to wake from sleep mode for no apparent reason. Activity from devices such as a Wireless Mouse, Network, or High Definition Audio can cause the computer to wake. Network activity can cause the network hardware to wake the computer, especially when the network is always on (like cable and DSL connections). Use the following steps to prevent hardware devices from waking the computer:
  1. At the Start screen type, Device Manager and then select Device Manager from the results list.
    Figure 7: Search results for Device Manager
    Search results for Device Manager
  2. Click the arrow next to the device that needs to be adjusted.
    • If you are using an optical mouse, select Mice and other pointing devices.
    • If the computer is using an "always-on" Internet connection, select Network Adapters.
    • To check the high definition audio settings, click Sound, video, and game controllers.
    Figure 8: Selections in the Device Manager window
    Selections in the Device Manager window
  3. Double-click the name of the device to open a Properties window.
  4. If the Power Management tab is available, proceed to the next step.
    If the Power Management tab is not available, click the Change Settings button. The same Properties window opens with the Power Management tab available.
    If you are prompted for an Administrator password or confirmation, type the password or provide confirmation.
  5. Click the Power Management tab, and remove the check next to Allow this device to wake the computer. You might need to do this for each of the devices listed in the previous step, mice, keyboards, and sound.
    Figure 9: Allow this device to wake the computer selection in the Power Management tab
    Allow this device to wake the computer selection in the Power Management tab
    NOTE:If you prevent the mouse from being able to wake the computer, you can still wake the computer using the Sleep button on the keyboard or the power button on the front of the computer.
  6. Click OK, close the open windows, and then restart the computer.
  7. Press the Windows + C key.
    The Charms menu opens to the right of the screen.
  8. Click Settings.
    Figure 10: Settings selection in the charms menu
    Settings selection in the charms menu
  9. Click Power, and select Restart to shut down the computer and restart it.
    Figure 11: Restart selection in the Power button menu
    Restart selection in the Power button menu
  10. If the issue still exists, check for problems with connected devices.
Some devices can cause sleep/standby issues. Use these steps to check for a problem with the devices connected to the computer.
  1. Disconnect all non-essential connected devices (printers, scanners, USB drives, etc.).
  2. Restart the computer with only the original mouse, monitor, and keyboard connected.
    If this resolves the sleep/standby issue, one of the connected devices was causing the problem. Replace one device and test to see if the issue occurs again. Continue adding devices and testing until you find the device that is causing the problem.
    If the issue still exists, check for problems with any keyboard or mouse which is using a USB 3.0 port.
Some viruses and other malicious applications can cause sleep/hibernate issues. It is therefore advisable to download/update antivirus applications and definitions, and run a scan.
Perform a virus scan to check the computer for possible viruses or other malicious applications that may be interfering with the sleep/hibernate modes.
For instructions on downloading and updating antivirus applications and definitions, and running a virus scan, refer to HP PCs - Resolving and Preventing Viruses on Your Computer (Windows 8) .
If the issue still exists, use Microsoft System Restore.
Malware applications can also cause sleep/hibernate issues. Windows Defender helps to prevent malware from infecting your computer in two ways:
  • Real-time protection: Windows Defender notifies you when malware tries to install itself or run on your computer. It also notifies you when applications attempt to change important settings.
  • Scanning options:. You can use Windows Defender to scan for malware that might be installed on your computer and to automatically remove (or temporarily quarantine) anything that is detected during a scan.
Open and use Windows Defender with the following steps:
  1. From the Start screen type windows defender and then click Windows Defender from the search results.
    Search results with Windows Defender selected
  2. Check the Windows Defender screen for harmful or unwanted software on your computer.
    • If Windows Defender detects potentially harmful or unwanted software, the names and details of the software are displayed on the opening screen. Use this information to decide whether to remove or temporarily disable the software.
    • If Windows Defender does not detect potentially harmful or unwanted software, no action is required.
    Figure 12: Windows Defender opening screen
    Windows defender screen open
  3. Run a scan of your computer with Windows Defender. You can run a quick scan or a full scan looking for malware. A full scan might cause your computer to run slowly until the scan is complete.
    • A quick scan checks the places on the hard disk drive that malware is most likely to infect. To run a quick scan, click Quick, and then click Scan now.
    • A full scan checks all files on your hard disk drive and all currently running programs. If you suspect that malware has infected your computer, run a full scan. To run a full scan, click Full Full, and then click Scan now.
    Figure 13: Scan options
    Screen with scan options

The computer will not go into sleep or hibernate mode

If the computer will not go into sleep or hibernate modes, use the following steps in order to troubleshoot.
Power settings control the computer’s ability to go into and come out of sleep/standby mode. Make sure the power options are set so the computer can use sleep/standby mode correctly.
The following steps provide detailed instructions:
  1. At the Start screen type, Control Panel and then select Control Panel from the results list.
    Figure 14: Search results for Control Panel
    Search results for Control Panel
  2. Click System and Security and then click Power Options. The Power Options window displays.
  3. Select one of the available plans, Power saver, Balanced, or High performance and click Change plan settings.
    Figure 15: Power Options window
    Power Options window
  4. Click Change plan settings.
    In the System Settings window, configure the desired behavior of the Power button, the Sleep button, and the display panel lid, for when it is running on battery power and for when it is plugged into a power source.
  5. Click Save changes, and then restart the computer.
  6. Press the Windows + C key and click Settings.
    The Charms menu opens to the right of the screen.
    Figure 16: Setting selection in the Charms menu
    Setting selection in the Charms menu
  7. Click Power, and select Sleep to see if the issue still exists.
    Figure 17: Sleep selection in the Power button menu
    Sleep selection in the Power button menu
If the issue still exists, disable hybrid sleep.
Some drivers can be downloaded from HP, others can be downloaded from Microsoft using Windows Update, and others can be found only on the manufacturer's website. Having the most current BIOS version and drivers installed on your computer can resolve several issues. To find the BIOS and driver updates available for your computer, check, in the following order, the following locations:
  • For instructions to update the BIOS of your computer, see the HP support document, Updating the BIOS .
  • For information and instructions on downloading and updating software and drivers, see HP support document, Downloading or Updating Software and Drivers for HP Computers .
  • For information about using Windows update for your computer in Windows 8 see the following steps:
    1. From the Start screen, type control panel to open the Search charm, and then select Control Panel from the search results.
      Figure 18: Search results for Control Panel
      Search results for Control Panel
    2. Click System and Security.
      Figure 19: Control Panel with System and Security selected
      Control Panel with System and Security selected
    3. Click Windows Update in the System and Security window.
      Figure 20: System and Security with Windows Update selected
      System and Security with Windows Update selected
    4. Click one of the following options, if presented, on the Windows Update window:
      • Important updates installs security updates or updates that are important to the health of your computer.
      • Optional updates allows you to select driver updates or updates that are optional. It is a good idea to download and install optional driver updates, especially if you have changed the Windows edition on your computer.
      Figure 21: Windows Update
      Windows Update with Important and Optional update selections called out
      The following options are available:
      • Control Panel Home: takes you back to the main Control Panel.
      • Check for updates: checks for updates
      • Change settings: enables you to set the computer to automatically install updates
      • View update history: checks to ensure that all important updates were installed.
      • Restore hidden updates: shows the restored updates so they can be installed.
      • Installed updates: shows installed updates; you can uninstall or change the installed updates.
      • Add features to Windows 8: shows a User Account Control box verifying if you want to allow the following program to make changes to this computer.
HP personal computers with Windows come with HP Support Assistant installed. HP Support Assistant can be used to automatically find and install the latest updates for your computer. If needed, you can install the latest version of HP Support Assistant from the HP Support Assistant site (in English).
Follow these steps to open the HP Support Assistant and check for software and driver downloads:
  1. Double-click the HPSA desktop icon or select HPSA from the Start screen.
  2. In HP Support Assistant, click Updates and tune-up.
  3. Click Check for updates now.
    HP Support Assistant checks for the latest updates from HP.
  4. If new updates are available, make sure the checkbox next to each update is checked and click Apply to begin downloading and installing the updates.
    If no new updates are available, click Finish.
For more information about configuring and using HP Support Assistant, please refer to the following support documents:
Malware applications can also cause sleep/hibernate issues. Windows Defender helps to prevent malware from infecting your computer in two ways:
  • Real-time protection: Windows Defender notifies you when malware tries to install itself or run on your computer. It also notifies you when applications attempt to change important settings.
  • Scanning options:. You can use Windows Defender to scan for malware that might be installed on your computer and to automatically remove (or temporarily quarantine) anything that is detected during a scan.
Open and use Windows Defender with the following steps:
  1. From the Start screen type windows defender and then click Windows Defender from the search results.
    Search results with Windows Defender selected
  2. Check the Windows Defender screen for harmful or unwanted software on your computer.
    • If Windows Defender detects potentially harmful or unwanted software, the names and details of the software are displayed on the opening screen. Use this information to decide whether to remove or temporarily disable the software.
    • If Windows Defender does not detect potentially harmful or unwanted software, no action is required.
    Figure 22: Windows Defender opening screen
    Windows defender screen open
  3. Run a scan of your computer with Windows Defender. You can run a quick scan or a full scan looking for malware. A full scan might cause your computer to run slowly until the scan is complete.
    • A quick scan checks the places on the hard disk drive that malware is most likely to infect. To run a quick scan, click Quick, and then click Scan now.
    • A full scan checks all files on your hard disk drive and all currently running programs. If you suspect that malware has infected your computer, run a full scan. To run a full scan, click Full and then click Scan now.
    Figure 23: Scan options
    Screen with scan options

Disabling the password requirement when resuming from sleep

If you are required to enter a password when you log on to your computer, the default setting will be the same for when the computer is resuming from sleep/hibernate mode. Use the following instructions to eliminate the need to use a password when resuming from sleep.
The following are instructions to not require the password on wake.
  1. At the Start screen, type control panel.
  2. Click Control panel from the results list.
    Figure 24: Search results for Control Panel
    Search results for Control Panel
  3. Click Power options on from the Control Panel Items.
    Figure 25: Control Panel Items
    Control panel items with Power Options selected
  4. Click Require a password on wakeup.
    Figure 26: Require a password on wakeup
    Control Panel Home with Require a password on wakeup selected
  5. Click Change settings that are currently unavailable.
    Figure 27: Change settings that are currently unavailable
    Power Options, System Settings with Change settings  that are currently unavailable selected
  6. Click Don't require a password.
    Figure 28: Don't require a password
    Power options with Don't require a password selected

Disabling hybrid sleep in Windows 8

The Hybrid Sleep setting might cause an issue with the sleep mode.
Use the following steps to use Power Options to disable hybrid sleep.
  1. Click Change plan settings for the power plan that is selected.
    Figure 29: Power Options window
    Power Options window
  2. Click Change advanced power settings.
    Figure 30: Notebook computers: Change advanced power settings selection in the Edit Plan Settings window
    Notebook computers: Change advanced power settings selection in the Edit Plan Settings window
    Figure 31: Desktop computers: Change advanced power settings selection in the Edit Plan Settings window
    Desktop computers: Change advanced power settings selection in the Edit Plan Settings window
  3. Navigate to the hybrid sleep settings by:
    Clicking the plus sign (+) next to Sleep,
    clicking the plus sign (+) next to Allow hybrid sleep,
    and selecting Off from the drop-down menu.
    Then click OK.
    Figure 32: Notebook computers: Allow hybrid sleep selection in the Power Options window
    Notebook computers: Allow hybrid sleep selection in the Power Options window
    Figure 33: Desktop computers: Allow hybrid sleep selection in the Power Options window
    Desktop computers: Allow hybrid sleep selection in the Power Options window

Understanding Windows 8 Sleep and Hibernate

Sleep: Pressing the Sleep key on the keyboard or clicking Sleep from the Windows 8 Shut down menu causes the computer to go into sleep mode. Closing the display panel on a notebook can also put the notebook in sleep mode. Sleep mode saves the state of all open applications to memory, then powers down both the display panel and hard disk drive. Only enough power is used to maintain the data in the memory. Restoring from Sleep mode happens quickly, in most cases in a matter of seconds. Sleep mode is useful when you need to pause the computer for a short time. However, in a notebook, maintaining the power to the memory modules can drain a battery if the notebook is not plugged in.
Hibernate: Clicking Hibernate from the Windows 8 Shut down menu (if available) causes the computer to go into the Hibernate mode. Hibernate saves the state of all open applications to the hard disk, then completely powers off the computer. The computer consumes no power while in hibernate mode. When you restart the computer, the previous state of all open applications is restored. Restarting from Hibernate mode might take longer than restarting from Sleep mode. Use hibernate when you do not need your computer for an extended period of time.

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