If you have tried to create a Windows 7 bootable USB using the microsoft tool then you might have got this error “The selected file is not a valid ISO file. Please Select a valid ISO file and try again ” .
To solve this problem you can use PowerISO full version :
- Open the ISO using PowerISO .
- Then go to the file-> Image Properties :
- Now you click on Image Properties and then click on the UDF checkbox .
- Now save the ISO file .
- Again open the DVD USB tool and now you can create you bootable DVD or bootable pendrive easily .