The error code 0xc0000098 means that the boot entry in the Windows bootloader is corrupted or missing which is preventing the startup of Windows OS.
Here are some methods that I gather for you to fix this issue.
1. If you recently installed any new hardware, disconnect it and try booting up again.
2. Boot into the recovery environment which is where you see a list of options available like System restore, cmd, startup setting, etc.
As soon as the windows dots starts spinning, just hold the power button for 5-8 seconds which will result in hard shut down. Do this twice and the third time windows will boot into the recovery environment.
Here you can try three things,
a. Go to Troubleshoot -> Advance option -> Startup Repair and see if the windows can repair the BCD itself.
b. If you have a restore point, you can roll back to a previous restore point.
c. Go to Troubleshoot -> Advanced Option -> Startup Settings and click Restart. This will display a screen with different startup modes to choose from and go with safe mode and see if it boots.
3. If none of the above works, use a different PC or laptop and download media creation tool from Windows, create a bootable USB drive using the software and try all these methods provided in this link.
https://troubleshooter.xyz/wiki/fix-boot-error-0xc0000098-on-windows-10/4. If none of the above works and you want to back up your files before reinstalling Windows, I'll suggest downloading latest Ubuntu ISO, making a bootable drive for it, boot it and backup all of your files to another storage media.