Windows boot slowly after dual boot Ubuntu

I used to use Windows for my work and It used to boot very fast. However, after dual boot with Ubuntu, my windows boot time became very long, it was annoying. I deleted Ubuntu, FORMATED ALL DRIVE, devided partitions, reinstalled Windows but it is still not better. FAST BOOT IS ENABLED, no start up app, no firewall, no antivirus.After windows logo 10 sec, boot is stucked in black screen 10 sec, and no background image in login screen (My laptop used to boot just in 8 sec before dual boot)

Hello buimanhthang,

Is your BIOS in UEFI or in Legacy mode? and with fast boot do you mean the option in Windows, the option in your bios (optional) or both?

Also, you could try to disable GUI boot. It basically gets rid of the Windows logo during the boot.
Open the run dialog with Windows key + R. then type in "msconfig" and activate "No GUI boot" inside the Boot tab.



Save changes and reboot. Let me know if the problem still exists.

Here is my BIOS settings. I tried setting no GUI boot, but it is not better.

Asuza said:

Hello buimanhthang,

Is your BIOS in UEFI or in Legacy mode? and with fast boot do you mean the option in Windows, the option in your bios (optional) or both?

Also, you could try to disable GUI boot. It basically gets rid of the Windows logo during the boot.
Open the run dialog with Windows key + R. then type in "msconfig" and activate "No GUI boot" inside the Boot tab.



Save changes and reboot. Let me know if the problem still exists.

Only one thing changed is that there was no circle loading symbol under windows logo. It is not faster. Above is my BIOS settings

As an experiment and I know it sounds counter intuitive. Would you mind trying shutting off hibernation which in turn will disable fast startup. Also if your device has something for fast start, like an Asus laptop, make sure its disabled. My thought is to just see how fast your machine boots right from storage drive.

Elevated command prompt powercfg -h off

Same command to turn on but with on instead of off.

Caledon Ken said:

As an experiment and I know it sounds counter intuitive. Would you mind trying shutting off hibernation which in turn will disable fast startup. Also if your device has something for fast start, like an Asus laptop, make sure its disabled. My thought is to just see how fast your machine boots right from storage drive.

Elevated command prompt powercfg -h off

Same command to turn on but with on instead of off.

I tried and I boot like restarting.

Boot in restarting is longer than boot after shutting down.

In restarting, it takes 8 sec on Windows logo and loading symbol. After that windows logo disappear and it takes 10 sec. It is stucked in black screen in 8 sec. And login screen, it takes 15 sec.

Booting after shutting down is a bit faster but it is still stucked in black screen a while before entering login screen with no background image (although I setted its background)

Found this article, some of it you've done but two interesting steps, Virtual Memory size and Linux Terminal, and I'm not sure when they get invoked in boot so they may make no difference. I know you want to reduce or better yet eliminate black screen portion after 10 logo. Worth a read.
5 Tips to Fix Slow Boot Times in Windows 10

In your BIOS Screen shots, and I'm not saying its wrong, you have as Boot options the Onboard NIC's. I'm on soft ground here but do you actually boot from a Network. Is it trying these options somehow?

Caledon Ken said:

Found this article, some of it you've done but two interesting steps, Virtual Memory size and Linux Terminal, and I'm not sure when they get invoked in boot so they may make no difference. I know you want to reduce or better yet eliminate black screen portion after 10 logo. Worth a read.
5 Tips to Fix Slow Boot Times in Windows 10

In your BIOS Screen shots, and I'm not saying its wrong, you have as Boot options the Onboard NIC's. I'm on soft ground here but do you actually boot from a Network. Is it trying these options somehow?

I think that boot options doesn't make sense. Anyway, thank you for your care.

Hello, you could try the following , :)

Make sure that you have a Windows installation medium, may it be a DVD or USB. If you don't have one you can take a look here on how to get it: https://www.tenforums.com/tutorials/...-download.html

Before you begin, create a system restore point !

1. Boot from the DVD or USB
2. Select your language etc. and click Next.
3. Click Repair your computer.
4. Click Troubleshoot.
5. Click Advanced Options.
6. Click Command Prompt.
7. In the command prompt window, type bootrec /fixmbr
8. Close the command prompt.
9. Click Turn off your PC.
10. Boot into Windows.

Please let me know if this has worked.

Asuza said:

Hello, you could try the following , :)

Make sure that you have a Windows installation medium, may it be a DVD or USB. If you don't have one you can take a look here on how to get it: https://www.tenforums.com/tutorials/...-download.html

Before you begin, create a system restore point !

1. Boot from the DVD or USB
2. Select your language etc. and click Next.
3. Click Repair your computer.
4. Click Troubleshoot.
5. Click Advanced Options.
6. Click Command Prompt.
7. In the command prompt window, type bootrec /fixmbr
8. Close the command prompt.
9. Click Turn off your PC.
10. Boot into Windows.

Please let me know if this has worked.

It doesn't work, nothing changes