Is my hard drive dead or ubuntu is Broken?

Can somebody help me. I was watching youtube then my laptop froze when i reboted my laptop it just says: error: failure reading sector 0x100800 from 'hd0 error. It says that for 5 or 4 times then just loads up grub. I dont know what to do. The ubuntu verson is 20.04 lts.

Solution 1:

Try booting from a live Ubuntu USB. If that works open the GNOME Disks application and try to repair the HDD partitions. Try again on a partition if repair fails the first time -- for some reason, a second attempt may succeed though the first fails without specific error message.

Also, use Disks to check the SMART data to see if the disk is failing.

If the HDD is OK, but still cannot boot, try Boot-Repair. If Boot Repair still doesn't help, you may need to reinstall Ubuntu. Try to save your personal files before reinstalling, since you might lose them otherwise.