Cannot access Windows after upgrade to 24.04

[63245aa]

Have been using version 22.04 with no trouble, but made mistake upgrading to version 24.04.
24.04 works fine but I was able to choose either Win or Ubuntu on startup before now no option to do so.
Is there a file I can download to correct this or is an update planned? If not can I fix this?
Thanks

[Rubi1200]

The fix may be as simple as updating grub.

In a terminal,

sudo update-grub

Reboot.

If this fixes it, great.

If not, run the boot info script (see my signature).

Do not repair but choose the option to create a summary report with a pastebin link.

You can then post the link back here.

[63245aa]

Update grub seemed to work but when rebooted still no choice as with 22.04.
Will try next option and report back.
Thank you]

[63245aa]

Finally figured out there are three separate lines that require enter after each and the && is not part of the line.
Hope this is correct: https//paste.ubuntu.com/p/zbnYpPcYP3/

Many hours ago I found a suggestion to modify the /etc/default/grub by adding GRUB_DISABLE_OS_PROBE=false save file and exit.
But was not able to find the /etc/default/grub line to modify it.

Thanks again

[yancek]

But was not able to find the /etc/default/grub line to modify it.

That is the full path to the file and if you do not have it, you have some serious problems. That is likely the change you need to make. To check if the file exists, run the command below, it won't change anything but you will see if it exists:

cat /etc/default/grub

If the file shows with the command use a text editor prefaced with sudo to get root privileges to modify the file. You can use: vim /etc/default/grub OR nano /etc/default/grub. vim and nano are text editors. If you are familiar with either, use it and preface the command with sudo.

Another option is to manually create an entry for the grub.cfg file (or for a permanent entry, the /etc/grub.d/40_custom file) but in order to explain that we would need to know whether windows is installed in UEFI mode or Legacy mode and whether it is on the same hard drive as Ubuntu.

[Rubi1200]

I don't know what the original disk layout was or how you upgraded.

The script results seem to show that Ubuntu is in working order.

However, the only part of Windows it detects is the Windows Recovery Environment.

lines 103-106:
sda1 is the Windows recovery partition and then you have 3 Linux partitions.

Ubuntu is on sda3 but 46.6GB seems pretty small for a regular install.

What was on sda2? This is a 229.9GB partition

Finally, sda4; is this a separate /home partition?

I hope you have backups of Windows.

[yancek]

How old is this hardware and which windows are you using? Boot repair shows it as XP?/

[63245aa]

Yanek: sudo cat/default/grub showed much info but when I tried to insert image and send got a message that security token was missing.
Rubi 1200: Yes very old Win XP but it has many programs and info that I like.
I have computer specs from Belarc advisor but don't know if I can specs. I tried sending the file but I think that coused the security token problem.
Will try if this message goes trough.

[63245aa]

Specs:

[63245aa]

Results of sudo cat etc/default/grub: