Do you know where to change the region setting?
If not go to the Device Manager - click on DVD/CD-ROM Driver - then right click on your DVD drive, and click on Properties then DVD Region. You can change your region you require.
If you cannot change the region and the region is locked or you have run out of changes, you can install Region Free software on your computer that allows you to play DVDs from any region.
There may be freeware available on the Internet (do a Google search), but I use DVD Region Free from
www.dvdidle.com
it costs a few dollars but I have no problems with it, my DVD drive is locked on Region 1.
There are firmware upgrades available for DVD drives that make them region free, but if you make a mistake with the wrong firmware update then your DVD drive is now a piece of junk.