I downloaded ubuntu 20.04 and started installation for dual boot with Windows 10 OS.
While checking disks, it indicates file error ie error in the disk.
Installation bootable pendrive is OK.
Deleted old ext4 partition and swap partition.
Created ext4 partition and swap partition from the same free space.
After some time it says: can not copy files, disk error etc. Tried many times.
I installed back Ubuntu 18.04.4 in a similar manner. It installed successfully.
Help is needed.