I have a total of two hard disks in my desktop PC. All the personal data are in second hard drive. First hard drive has two operating system installed. Windows 7 and Ubuntu. In both the operating system I was able to work normally. I used to access second harddisk in Windows and I use Linux for learning purpose alone. Recently I formatted one of the partition in second hard disk in etx3 format thinking that i can use it in Linux. But after system restart I am unable to see the second hard disk itself in Windows! I have good amount of data in second hard disk and cannot do full format. How to make partition reappear, either in Windows or Ubuntu so that I can copy all the data first?
Ext4 partition makes my hard disk not being detected
I think you accidentally formatted the partition on your second hard drive that uses the Windows file system. If you want to use a file system on your second hard drive that is native to Linux Ubuntu, you should check first how many partitions are there on the second hard drive. If the second hard drive has only 1 partition which is recognized and used by Microsoft Windows, you cannot format it using the Linux Ubuntu file system because the entire hard drive will be unrecognizable to your Windows operating system.
You should adjust the size of the Windows partition or shrink it to make room for the Linux partition. Once you have enough space in your hard drive, create a partition out of the space you created and format it using the Linux file system. Don’t change which partition is active because Windows might not recognize your hard drive because of the active partition.
If your second hard drive is no longer visible in your Windows platform that means you accidentally formatted the partition used by Windows. Another possible reason is if you changed the active partition and you made the Linux partition active or there is no active partition. To fix this, make sure there is one active partition in your second hard drive or make the Windows partition active.
