Can't Mount Windows

[dustfall]

Ubuntu Version

Ubuntu 26.04 LTS

Desktop Environment (if applicable)

GNOME

Problem Description

Just started dual-booting Windows 10 and Ubuntu. I’m trying to mount Windows while on Ubuntu but can’t for some reason. Likely isn’t a problem with Hibernation or Fast-Startup as both are disabled.

Relevant System Information

I only installed Ubuntu yesterday, so I haven’t done almost anything of note besides setting up WINE.

Screenshots

Error Messages / Logs

Unable to access “Windows”
Error mounting /dev/nme0n1p3 at /run/media/(user)/Windows: wrong fs type, bad option, bad superblock, on /dev/nvme0n1p3, missing codepage or helper program, or other error

What I’ve Tried

Disabling fast-startup and hibernation on Windows 10.

[tea-for-one]

Power off the PC
Boot into Windows and run chkdsk on C drive (assuming that this is /dev/nvme0n1p3)
Power off completely (not reboot)
Power on and boot into Ubuntu
Open a terminal and enter

lsblk -e 7 -o name,size,pttype,type,fstype,fsuse%,fsavail,mountpoint

Please post the output within code tags </>

[dustfall]

output on windows is extremely long, do you want the entire thing or is there something specific i should be looking at?

output on ubuntu:

NAME          SIZE PTTYPE TYPE FSTYPE FSUSE% FSAVAIL MOUNTPOINT
nvme0n1     953.9G gpt    disk                       
├─nvme0n1p1   300M gpt    part vfat      12%  259.9M /boot/efi
├─nvme0n1p2   128M gpt    part                       
├─nvme0n1p3 877.3G gpt    part ntfs                  
├─nvme0n1p4   900M gpt    part ntfs                  
├─nvme0n1p5  21.3G gpt    part ntfs                  
└─nvme0n1p6    54G gpt    part ext4      81%    7.4G /

[tea-for-one]

@dustfall

output on windows is extremely long

Did you have errors?

---

Files (nautilus) in Ubuntu 26.04 will always mount a clean, undamaged ntfs partition.

There are some Linux utilities which may fix ntfs errors but I would strongly recommend that Windows tools should be used exclusively to repair/clean ntfs partitions.

[Actionparsnip]

I’d recommend a full chkdsk in Windows to make sure the file system is consistent. NTFS is proprietary to Microsoft and only they fully know how the file system works.

[dustfall]

after further testing on my own, running chkdsk c: -f on windows fixed the problem. no clue how it got like that, but thanks everyone for the help.

[dustfall]

yes, there were errors. running chkdsk c: -f fixed the problem. thank you for the help.

[Actionparsnip]

The NTFS access you enjoy is a best effort attempt as Microsoft will not release the design for NTFS so making the file system as consistent as posible will give a smoother experience in non-Microsoft based OSes. Glad you got the gold.
The applies to external disks too (USB) and you should always use the safe remove feature in the OS before unplugging external storage so that the file system remains as consistent and complete as possible