reboot takes forever, normal boot from off is quick

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I have a HP Compaq 8200 Elite Small Form Factor-PC (that’s the official name) with a WesternDigital Blue SSD and Windows 10 (20H2).

It works flawlessly.

But with one exception.

Whenever I do a reboot from Windows 10, it takes forever to reboot. If I shut it down, and then press the Power ON/OFF button, it starts very quickly, as expected.

Network boot is disabled, als well as booting from USB-Sticks or CD/DVD.

But it has an old MBR (NOT UEFI) partition scheme. (AHCI is enabled.)

ANY idea why it takes so long to boot?

Please help.

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SearchingForParadise wrote:

Whenever I do a reboot from Windows 10, it takes forever to reboot

Windows 10 reboot is the real shutdown.
Windows shutdown doesn’t shut Windows kernel..

Try disabling Fast Startup.

https://computer.howstuffworks.com/restarting-shutting-down-computer.htm#:~:text=Restart%2C%20in%20contrast%2C%20actually%20does,the%20kernel%2C%20according%20to%20Tidrow.&text=If%20your%20computer%20has%20frozen,be%20a%20more%20complete%20option.

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Alex5723 wrote:

Windows 10 reboot is the real shutdown. Windows shutdown doesn’t shut Windows kernel..

Windows shutdown shuts down the whole PC.

Always create a fresh drive image before making system changes/Windows updates; you may need to start over!

We all have our own reasons for doing the things that we do with our systems; we don't need anyone's approval, and we don't all have to do the same things.

We were all once "Average Users".

Computer Specs

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bbearren wrote:

Windows shutdown shuts down the whole PC.

No, it does not. Restart does shut down the PC (and then restarts).

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Windows shutdown does shut down the whole PC in that the PC ends up being powered down. However, if Fast Startup is enabled then during the shutdown process the kernel is copied to the hibernation file. Then on a subsequent boot, the kernel and drivers are restored from the hibernation file and the user sessions are started from scratch. If Fast Startup is disabled a subsequent reboot acts the same as Restart in that everything starts from scratch.

--Joe

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When you click “Shut Down” on your Windows 10 PC, Windows doesn’t fully shut down. It hibernates the kernel, saving its state so it can boot faster. If a user is experiencing computer problems and need to reset that state, you’ll need to restart your PC instead.

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SearchingForParadise wrote:

Whenever I do a reboot from Windows 10, it takes forever to reboot. If I shut it down, and then press the Power ON/OFF button, it starts very quickly, as expected.

In an elevated Command Prompt, run

dism /online /cleanup-image /restorehealth

When that completes, run

sfc /scannow.

Then check you boot times again to see if anything has changed.

Always create a fresh drive image before making system changes/Windows updates; you may need to start over!

We all have our own reasons for doing the things that we do with our systems; we don't need anyone's approval, and we don't all have to do the same things.

We were all once "Average Users".

Computer Specs

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Sometimes with certain conditions being met Windows can just take a long time to clean up after itself and applications when restarting a computer.

Whenever memory usage is intensive, many files have been accessed, the heavy use of virtual memory, updates, some of these condition contribute to slow restarts.

Most of the time with light usage Windows will quickly restart.

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There two separate events when a computer is booted. The first one the motherboard POST (Power On Self Test) to determine if the motherboard is sound. The POST is a BIOS/UEFI event that happens before any windows operating system files begin loading. You’ll generally see a brief splash screen of the manufactures logo during the POST. After the POST, the windows spinning circle will appear as the OS begins to load.

Suggest you determine where the delay is happening, the POST or loading OS files at the spinning circle. If the long delay is at the POST splash screen, the trouble may not be with windows.

I have a two-year-old gaming laptop (UEFI) that will sometimes have a very long POST at the splash screen, but once the spinning circle starts, the boot “time to the desktop” is at the normal fast rate. On this laptop, when the slow POST delay happens it’s always on a restart, and it’s usually after installing/uninstalling software or a big cleanup. The delay does *not* happen from a power off cold boot. I’m not sure why this happens, but it’s rare, so I’m not concerned.

Finally, fwiw, I generally power down my active machines (desktop and 3 laptops) with this command string:
C:\Windows\System32\shutdown.exe /s /f /t 0

It’s a full shut down that does not hibernate kernel or warn you of open apps, same a restart.

Desktop Asus TUF X299 Mark 1, CPU: Intel Core i7-7820X Skylake-X 8-Core 3.6 GHz, RAM: 32GB, GPU: Nvidia GTX 1050 Ti 4GB. Display: Four 27" 1080p screens 2 over 2 quad.

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