I know this question was asked earlier. But I tried all option, nothing worked for me so far. My laptop Lenovo Thinkpad. In the Bios UEFI/Legacy boot, I have Legacy only. I had Mint19 and Windows 10 dual boot system. That was working fine. For some reason, I decided to replace mint19 with ubuntu 18. After the installation, Grub boot menu shows both windows10 and ubuntu. But I can only boot Ubuntu. My win 10 doesn't boot anymore.
I read this Unable to boot into Windows after installing Ubuntu, how to fix?
There someone suggested executing a script that generated some system information. I have the result.txt after executing the script. The RESULTS.txt in my Google Drive:- https://drive.google.com/file/d/1JAOcZaEGZZbV4q96ADw9cqDnaK_bNLwI/view
Could you please suggest how to fix this issue?
Extra information:-
Here is the situation. I think my windows installation and files are in /dev/sda1 ntfs and /dev/sda2 extended. I think I have to merge /dev/sda2 extended into /dev/sda1 ntfs. I have no idea how to do it? I must not delete the partition to avoid windows files. Could you please suggest how can put both /dev/sda1 ntfs and /dev/sda2 extended without losing data?