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#1
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How to enable hibernation in the Power menu - Windows 7 Home
My W7 laptop came with hibernation enabled. Somehow, a long time ago, I
managed to disable it. Now that the battery has lost its ability to store any charge, I want to enable hibernation so I can save the state of the PC to disk (rather than to battery-backed memory, as for "sleep"), to avoid having to start the PC from cold every time I unplug it from the mains. But none of the standard things seem to work. I've tried (from an admin-mode DOS prompt) "powercfg -h on" which completes without an error message (or any other message expect a prompt) but has no effect, even after rebooting. In Control Panel | Power, I select the active power plan (balanced) and click "Change Plan Settings" and then "Change Advanced Settings". Under "Sleep", "sleep after" and "hibernate after" are set to never for both mains and battery, to prevent the PC sleeping *automatically* but this shouldn't prevent me being able to trigger it manaullly from the Start | Power menu, should it? I gather I should set "Allow hybrid sleep" to off for battery/mains, but this option is permanently set to on and is greyed out - this looks ominous... A c:\hiberfil.sys file exists on the disk, along with a pagefile.sys. Both are identical sizes (6GB, for 6 GB RAM) and timestamps (the time the PC was booted). Both have the system and/or hidden attribute (ie you need "dir /as" to see them). Is there anything else I should do to add hibernate (save RAM state to disc) to the Start menu, which currently defaults to Sleep, with pop-up options: Switch User, Logiff, Lock, Restart, Shutdown - but no Hibernate. I'm logged in as an admin-mode user rather than a standard user (Control Panel | Users). In the registry, HKLM/System/CurrentControlSet/Control/Power/HibernateEnabled is set to 1 - I've seen a .reg file referred to which sets this key to enable hibernation, so that has already been done. |
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#2
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How to enable hibernation in the Power menu - Windows 7 Home
On 03/23/2018 03:48 PM, NY wrote:
My W7 laptop came with hibernation enabled. Somehow, a long time ago, I managed to disable it. Now that the battery has lost its ability to store any charge, I want to enable hibernation so I can save the state of the PC to disk (rather than to battery-backed memory, as for "sleep"), to avoid having to start the PC from cold every time I unplug it from the mains. But none of the standard things seem to work. I've tried (from an admin-mode DOS prompt) "powercfg -h on" which completes without an error message (or any other message expect a prompt) but has no effect, even after rebooting. In Control Panel | Power, I select the active power plan (balanced) and click "Change Plan Settings" and then "Change Advanced Settings". Under "Sleep", "sleep after" and "hibernate after" are set to never for both mains and battery, to prevent the PC sleeping *automatically* but this shouldn't prevent me being able to trigger it manaullly from the Start | Power menu, should it? I gather I should set "Allow hybrid sleep" to off for battery/mains, but this option is permanently set to on and is greyed out - this looks ominous... A c:\hiberfil.sys file exists on the disk, along with a pagefile.sys. Both are identical sizes (6GB, for 6 GB RAM) and timestamps (the time the PC was booted). Both have the system and/or hidden attribute (ie you need "dir /as" to see them). Is there anything else I should do to add hibernate (save RAM state to disc) to the Start menu, which currently defaults to Sleep, with pop-up options: Switch User, Logiff, Lock, Restart, Shutdown - but no Hibernate. I'm logged in as an admin-mode user rather than a standard user (Control Panel | Users). In the registry, HKLM/System/CurrentControlSet/Control/Power/HibernateEnabled is set to 1 - I've seen a .reg file referred to which sets this key to enable hibernation, so that has already been done. https://support.microsoft.com/en-us/...hat-is-running the command they suggest is powercfg.exe /hibernate off |
#3
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How to enable hibernation in the Power menu - Windows 7 Home
NY wrote:
My W7 laptop came with hibernation enabled. Somehow, a long time ago, I managed to disable it. Now that the battery has lost its ability to store any charge, I want to enable hibernation so I can save the state of the PC to disk (rather than to battery-backed memory, as for "sleep"), to avoid having to start the PC from cold every time I unplug it from the mains. But none of the standard things seem to work. I've tried (from an admin-mode DOS prompt) "powercfg -h on" which completes without an error message (or any other message expect a prompt) but has no effect, even after rebooting. In Control Panel | Power, I select the active power plan (balanced) and click "Change Plan Settings" and then "Change Advanced Settings". Under "Sleep", "sleep after" and "hibernate after" are set to never for both mains and battery, to prevent the PC sleeping *automatically* but this shouldn't prevent me being able to trigger it manaullly from the Start | Power menu, should it? I gather I should set "Allow hybrid sleep" to off for battery/mains, but this option is permanently set to on and is greyed out - this looks ominous... A c:\hiberfil.sys file exists on the disk, along with a pagefile.sys. Both are identical sizes (6GB, for 6 GB RAM) and timestamps (the time the PC was booted). Both have the system and/or hidden attribute (ie you need "dir /as" to see them). Is there anything else I should do to add hibernate (save RAM state to disc) to the Start menu, which currently defaults to Sleep, with pop-up options: Switch User, Logiff, Lock, Restart, Shutdown - but no Hibernate. I'm logged in as an admin-mode user rather than a standard user (Control Panel | Users). In the registry, HKLM/System/CurrentControlSet/Control/Power/HibernateEnabled is set to 1 - I've seen a .reg file referred to which sets this key to enable hibernation, so that has already been done. Did you run powercfg in a command shell *with admin privileges*? Sometimes there is confusion over a setting, so change away from the wanted value and to the wanted value even when the value is already the desired value. That is, toggle state away and back. powercfg -h off powercfg -h on There can be multiple power plans. Did you modify the power button and lid actions for the currently *selected* power plan? Are you still logged in under the Windows account where you changed power options for when you are testing use of hibernate? With a main battery, the OS will crash (no memory save) on every loss of power which includes you disconnecting the A/C adapter, the outlet going dead (I've seen users hook to a switched outlet), or a power outage. Copying the memory into the hiberfil.sys file takes take during which there must be power. Closing the lid means you still have to give the laptop enough time to copy its memory into a file before you yank the A/C power source. You cannot add Hibernate to the Start Menu - Shutdown drop-down list. You can change what action is the default for the Start menu's power button by going into the taskbar's properties: right-click on empty space of Windows taskbar, Properties, Start Menu tab, Power button action, select Hibernate. If your computer/OS setup supports hybrid mode, disable in (in Power Options for the currently selected power plan). Hybrid mode is not full hibernate (where power can be removed and memory later restored on power up). Hybrid mode puts any documents and programs into the hiberfil.sys file but NOT the system memory content. Hybrid then puts the computer into low-power (standby) mode to preserve the memory content. Hybrid mode, if enabled, overrides hibernate mode (because hybrid is a low- power hibernate mode, not a no-power hibernate mode). Hybrid mode is enabled/disabled under Power Options - your selected power plan - Change plan settings - Change advanced settings - Sleep. After disabling the Hybrid sleep option, the Hibernate option should show up under Start Menu - power button (right-side panel). It will be a new entry in the drop-down list. Then you can elect to make it the default action for the Start Menu's power button (described above). Somewhere you still need to perform a shutdown. Don't rely on the availability of the Start Menu's power button. If an application is hung but refuses to relinquish focus or Windows get hung, the Start Menu won't be accessible. Make sure the Power button (on the computer, not inside of Windows) is configure in Power Options to do a shutdown. This gives you a chance of forcing a graceful shutdown of Windows rather than having to crash it by removing power. |
#4
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How to enable hibernation in the Power menu - Windows 7 Home
VanguardLH wrote:
NY wrote: My W7 laptop came with hibernation enabled. Somehow, a long time ago, I managed to disable it. Now that the battery has lost its ability to store any charge, I want to enable hibernation so I can save the state of the PC to disk (rather than to battery-backed memory, as for "sleep"), to avoid having to start the PC from cold every time I unplug it from the mains. But none of the standard things seem to work. I've tried (from an admin-mode DOS prompt) "powercfg -h on" which completes without an error message (or any other message expect a prompt) but has no effect, even after rebooting. In Control Panel | Power, I select the active power plan (balanced) and click "Change Plan Settings" and then "Change Advanced Settings". Under "Sleep", "sleep after" and "hibernate after" are set to never for both mains and battery, to prevent the PC sleeping *automatically* but this shouldn't prevent me being able to trigger it manaullly from the Start | Power menu, should it? I gather I should set "Allow hybrid sleep" to off for battery/mains, but this option is permanently set to on and is greyed out - this looks ominous... A c:\hiberfil.sys file exists on the disk, along with a pagefile.sys. Both are identical sizes (6GB, for 6 GB RAM) and timestamps (the time the PC was booted). Both have the system and/or hidden attribute (ie you need "dir /as" to see them). Is there anything else I should do to add hibernate (save RAM state to disc) to the Start menu, which currently defaults to Sleep, with pop-up options: Switch User, Logiff, Lock, Restart, Shutdown - but no Hibernate. I'm logged in as an admin-mode user rather than a standard user (Control Panel | Users). In the registry, HKLM/System/CurrentControlSet/Control/Power/HibernateEnabled is set to 1 - I've seen a .reg file referred to which sets this key to enable hibernation, so that has already been done. Did you run powercfg in a command shell *with admin privileges*? Sometimes there is confusion over a setting, so change away from the wanted value and to the wanted value even when the value is already the desired value. That is, toggle state away and back. powercfg -h off powercfg -h on There can be multiple power plans. Did you modify the power button and lid actions for the currently *selected* power plan? Are you still logged in under the Windows account where you changed power options for when you are testing use of hibernate? With a main battery, the OS will crash (no memory save) on every loss of power which includes you disconnecting the A/C adapter, the outlet going dead (I've seen users hook to a switched outlet), or a power outage. Copying the memory into the hiberfil.sys file takes take during which there must be power. Closing the lid means you still have to give the laptop enough time to copy its memory into a file before you yank the A/C power source. You cannot add Hibernate to the Start Menu - Shutdown drop-down list. Oops, meant you cannot add Hibernate as an option under Start Menu - power button - dropdown list *if* Hybrid mode is enabled. Hibernate mode is memory save and then *no* power. Hybrid mode is memory save and then *low* power mode (standby). Hybrid overrides Hibernate. Gotta get rid of Hybrid mode, if available and if enabled. |
#5
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How to enable hibernation in the Power menu - Windows 7 Home
"VanguardLH" wrote in message
... Oops, meant you cannot add Hibernate as an option under Start Menu - power button - dropdown list *if* Hybrid mode is enabled. Hibernate mode is memory save and then *no* power. Hybrid mode is memory save and then *low* power mode (standby). Hybrid overrides Hibernate. Gotta get rid of Hybrid mode, if available and if enabled. Yes. I think I'd come to the same conclusion. The problem is how to disable hybrid sleep when the dropdown control in Control Panel | Power | (power plan) | Advanced is greyed-out. If I could do that, I get the impression that hibernation to disk would become available in the Start | Power control and as an action to be taken when the lid is closed. Incidentally, I *did* run the powercfg commands (both off and on, with reboots in between) from a "Run as admin" CMD prompt. I think I did say that, but you may have missed it. |
#6
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How to enable hibernation in the Power menu - Windows 7 Home
NY wrote:
"VanguardLH" wrote in message ... Oops, meant you cannot add Hibernate as an option under Start Menu - power button - dropdown list *if* Hybrid mode is enabled. Hibernate mode is memory save and then *no* power. Hybrid mode is memory save and then *low* power mode (standby). Hybrid overrides Hibernate. Gotta get rid of Hybrid mode, if available and if enabled. Yes. I think I'd come to the same conclusion. The problem is how to disable hybrid sleep when the dropdown control in Control Panel | Power | (power plan) | Advanced is greyed-out. If I could do that, I get the impression that hibernation to disk would become available in the Start | Power control and as an action to be taken when the lid is closed. Incidentally, I *did* run the powercfg commands (both off and on, with reboots in between) from a "Run as admin" CMD prompt. I think I did say that, but you may have missed it. In the Option 3 section here, there is "Change settings that are currently unavailable" shown in the final picture in that section of the article. https://www.sevenforums.com/tutorial...tart-menu.html When you click that, the section at the bottom here has some tick boxes, and "Sleep" is a tick box. Sleep and/or hibernate boxes would be grayed out, if the associated ACPI stuff is damaged or some policy is set or something. "powercfg -h off" can also be used to gray out the Hibernate tick box, but I don't think there is a powercfg command for sleep. https://www.sevenforums.com/attachme...on-power-2.jpg Paul |
#7
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How to enable hibernation in the Power menu - Windows 7 Home
Paul wrote:
"Change settings that are currently unavailable" Didn't even think to mention that option. Forgot the OP said some of the power options were disabled. ACPI stuff is damaged Got me wondering how old is the laptop. Were any laptops manufactured before ACPI became ubiquitous? We don't know what brand and model the OP has so no way to tell how old it is. Even if ACPI is available in the BIOS, perhaps the laptop was configured to use the old APM mode instead of ACPI mode. https://en.wikipedia.org/wiki/Advanc...t#Power_states .... APM Suspend: Most devices are powered off, but the system state is saved. The computer can be returned to its former state, but takes a relatively long time. (Hibernation is a special form of the APM Suspend state). Hibernate was supposedly available but will Windows work with APM to get into hibernate mode? For example: http://www.thinkwiki.org/wiki/How_to_make_APM_work Suspend to disk (Hibernate) The Phoenix BIOS allows you three ways to hibernate with APM: .... using a hibernation file on a dos type partition .... DOS type partition. Hmm, what if Windows is running on an NTFS partition? The hardware abstraction layer (HAL) installed when Windows gets installed depends on which power mode the computer supports and was configured to use in its BIOS. APM is the legacy method based on hidden hardware (SMI/SMM) and relied on a machine-specific BIOS feature set. Not all APM-capable computers are supported by Windows. If APM was not enabled within Windows during its installation (and ACPI wasn't used as a superceding specification for power management), that computer's BIOS is known to have problems, it was on the disable list, or is not on the auto-enable APM list. apmstat.exe tool is too old, system requirements list only Windows 2000, and it won't work with multiple processors (whether physically separate or multi-core). The OP could go into Device Manager (devmgmt.msc), use the View - Show hidden devices menu, expand the Computer tree node, and hopefully sees it is an ACPI HAL getting used in Windows on his laptop (and it should be Microsoft's driver so Windows knows how to communicate with it - but then the MS driver needs to know how to communicate with the BIOS which is easy for ACPI but vendor BIOS-specific for APM). Under the System Devices tree node should also be the ACPI Fixed Feature Button and ACPI Power Button devices. I assumed the OP either got this laptop already setup by its maker or he made sure the laptops chipset driver package was installed. While DevMgr lets the user update the driver for a device, I'm reluctant to suggest doing so for a computer that is fully functional but lacks one non-critical convenience feature (hibernate). Just because ACPI replaced APM doesn't mean BIOS vendors didn't screw up the hardware definitions in the ACPI that Windows queries. As yet, we have no idea of brand and model of the laptop and are trying to resolve a problem on some generic and vague "laptop". See: https://docs.microsoft.com/en-us/win...el/acpi-driver hiberfil.sys must be on the same boot partition as where Windows loads (its boot partition for the kernel, rest of Windows and apps which may or may not be the same as the system partition which is used to boot). That is, hiberfil.sys is in the root folder of the same partition where is the \Windows folder. While the OP mentioned C:\hiberfil.sys for its location, what if C: wasn't the boot partition but instead, say, E: was Windows' boot partition. We, as yet, really don't know how this laptop was configured for booting or its partitioning. https://technet.microsoft.com/en-us/...fidential.aspx Maybe the OP needs to delete all hiberfil.sys files wherever they are and let Windows create a new one in the correct location. If the OP cannot get hibernate mode enabled to use it, the hiberfil.sys file is just wasting disk space. Also might be time to run "chkdsk /r C:". While all the troubleshooting, so far, has been to display Hibernate at various places in the Windows GUI (Start Menu's power button or drop-down list, action for a button, etc), perhaps the OP needs to first check that hibernate will work. Supposedly "powercfg -h on" enabled it, so see it the laptop can actually go into hibernate mode sans all the GUI methods and just start a hibernate from the command line (probably requires a command shell with admin privileges): shutdown /h Run "shutdown /?" to see all the options in the shutdown.exe program. Because I switched from an HDD for the OS partition (which is both the system and boot partition) to an SSD, I don't want to waste the limited write cycles of the SSD on a hibernate file. The SSD makes the OS load faster which was half the reason for using a hibernate file. If I am done with a Windows session, I don't leave programs or documents open. I close everything or have Shutdown do that. After all, how long will it take to reopen the same .doc file, especially since it is in Word's recent docs list? I can't hibernate during a compile or while video editing as those likely won't tolerate the interruption. With 16 GB of system memory, that's a lot of wasted space and a lot of writes on a 256GB SSD for a feature that isn't really that helpful. Without a main battery, the OP's laptop has become a low-end desktop. He will have to keep looking for A/C power to use with the adapter. Likely that laptop isn't moving anywhere which means it isn't getting "unplugged from the mains". If the laptop is still moving around, well, the time to start Windows is only a little longer than the time to read the hiberfil.sys file into memory -- unless the OP has a ton of startup programs eating up his memory. So either close everything down before shutting down Windows or just leave the laptop running. With a main battery, why couldn't the laptop still go into sleep mode? The laptop won't power off so its memory keeps its state. If the laptop is indeed still being used as a portable computer, and if hibernate isn't available (perhaps because of a BIOS limitation or setting), then cold booting is what the OP will have to do until he gets a new main battery. Besides, having a main battery to keep the laptop in low-power mode isn't a long-time solution. The battery will still drain which means eventually the laptop will still have to turn off. Some things the OP should do or consider: - Is the unidentified laptop using APM or ACPI? - Tried deleting the hiberfil.sys file? Just wasted space if cannot get hibernate to work. If hibernate is made to work, it ALWAYS recreates the ENTIRE file, anyway. - Does "shutdown /h" work to put the laptop into hibernate mode? - How is the Windows boot partition formatted? FAT or NTFS? - How much system memory is there (copied into the hiberfil.sys file)? Is it more than 4GB? FAT16/32 has a limit of 4GB for maximum file size. You cannot save memory into a hiberfil.sys in a file system where the maximum file size is less than the system memory size. ALL of system memory gets copied into hiberfil.sys, not just the currently allocated blocks. - Just how expensive is a new main battery for the unidentified laptop? The whole point of a portable computer is that it is portable, not fixed to desktop-like locations for where A/C power is available. |
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