Windows 10: My laptop won't automatically boot to Windows after deleting Ubuntu partition for dualbooting.

I dualbooted Windows 10 Pro 22H2 with Ubuntu 24.04 LTS, but I feel like I don't want to use it anymore so I deleted the Ubuntu partition. After I deleted the partition and restart my laptop, it goes to this "grub" thing that looks like a terminal which I don't know what it is. But after I typed "exit" and press enter, it boots to Windows normally. And when I tried restarting it again, it goes to this "grub" terminal again. Can somebody help me?

:)

 

Bootlooping issues after deleting ubuntu partitions

Hello, so yesterday I want to delete my ubuntu dualboot from my system, so I just format the partition of the ubuntu, But after I restart my laptop, I've found that now I can't boot up into windows, sometimes I got an error like, No such filesystem, or simply my laptop would turn off and rebooted again

I already tried using
- chkdsk D:/ /f (from usb)

-bootrec /fixmbr

-bootrec /fixboot

 

Ubuntu and several Windows partition is not detected in Windows Disk Management | Dual Booting

I have a problem regarding dual-boot installation of Ubuntu. I'm not very familiar on dual-booting but I follow several turtorial to do it. During installation of Ubuntu as dual-boot, I did not choose the option of manually partition, instead i choose the automatically partition and resize it to match the amount of unallocated storage. After installation, it works perfectly fine for both windows and ubuntu. However I found that my Ubuntu and several partition is not detected in Disk Management.

The steps for installation:

• Shrink local disk E: (HDD) for unallocated space
  
• Bitlocker is disabled
  
• Disabled secure boot and fast startup
  
• Boot from UEFI USB Ubuntu
  
• Install alongside Windows Boot Manager
  
• Partition: choose the default installation instead of manually partition (Using manual partition did not detect unallocated space)
  

I have 2 storage, SSD (Windows/ Disk 1) and HDD (Several Windows programs and data/ Disk 0). The HDD storage has several partition;

• Local Disk D: 510.82 GB for some applications
  
• Local Disk E: 225.37 GB for data
  
• Unallocated: ~195 GB
  

Even though it works perfectly fine, I'm afraid it will cause issues in the near future, and i want my linux partition and windows data partition to be shown in disk management. Can you please help me on this issue. It also shows Local Disk D and E which has windows applications and data to have red x indicator in disk management.





My idea: my current solution is probably to delete volume for Local Disk D and E to delete Ubuntu and delete several data I have in windows to reinstall ubuntu back using manually partition. However a second opinion or more can be my consideration to not delete my file in windows.

Thank you for your attention

 

Drive partition change destroyed Windows (dualboot)

A dual boot on a Legacy - MBR is different from a boot on a UEFI - GPT drive. Is your SSD drive a Legacy - MBR or UEFI - GPT? On a Legacy - MBR the main boot manager is Grub. Once you deleted the Ubuntu partition you also deleted Grub. With Macrium you can copy the Ubuntu partition from the second SSD to the first one (that has Windows) or You can rebuild the boot manager on the windows partition. What you want to do? Boot from a Win 10 installation drive. At the Windows Setup screen, press Shift+F10 simultaneously to open a command line prompt and type: Diskpart List disk (on the last column (GPT) see if there is an * for the drive.) exit Report