The GNS3 appliance template file may not match the filename downloaded and will complain about the MD5 checksum not matching. Make a note of the MD5 checksum for the new filename as you will need this when you edit the appliance .GNS3a file.

For example, the downloadable filename for Windows 7 with IE11 changed from “IE11_-_Win7-disk1.vmdk” to “IE11-Win7-VMWare-disk1.vmdk”.

Find the places where the old filename are mentioned and change the filename to the new filename and alter the md5sum, and no need to alter the filesize.

Before

{
“filename”: “IE11_-_Win7-disk1.vmdk”,
“version”: “7 w/ IE11”,
“md5sum”: “5733cc93a6ed756c2358f0a383b411a8”,
“filesize”: 4101495296,
“download_url”: https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/

},

{
“name”: “7 w/ IE11”,
“images”: {
“hda_disk_image”: “IE11_-_Win7-disk1.vmdk”
}
},

After

{
“filename”: “IE11-Win7-VMWare-disk1.vmdk”,
“version”: “7 w/ IE11”,
“md5sum”: “d682fde5fc4d8fd4374fdeca70fd2011”,
“filesize”: 4101495296,
“download_url”: https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/

},

{
“name”: “7 w/ IE11”,
“images”: {
“hda_disk_image”: “IE11-Win7-VMWare-disk1.vmdk”
}
},