If the map files are there, mapsource is installed, but the maps still don't show within mapsource, there's some info in the below linked threads about two registry keys that you can confirm are identical across both PC's. With any luck, mapsource will now recognize that you have that same map product, it is unlocked, and in the same place.
![how to unlock garmin topo us 24k how to unlock garmin topo us 24k](https://www.himalayangpsmaps.com/images/product_images/info_images/screenshot04_1.jpg)
Go to unlock regions, and import that unlock file you had. According to the Garmin 24K topo maps in DVD and uSD formats are not locked and can be used on multiple devices: 'Garmin recently finished rolling out their new TOPO US 24K map sets. Run mapsource, go to that same utilities menu and Manage Map Products. Garmin 24K topo maps are not locked to a particular device.
How to unlock garmin topo us 24k install#
On your new laptop, install the latest version of Mapsource. Garmin Topo Norway complete: 544.12 MB: Software: Garmin MapSource Norway all CD N50&N250 TOPO ISO IMG.ISO: 661.24 MB: Software: Garmin - Topo Canada: 1.99 GB: Software: Garmin US TOPO 24K National Parks v3 - No Unlock Needed: 936.74 MB: Software: Garmin Mapsource Norway Topo Pro 15 Harstad.zip: 26.36 MB: Software: Garmin Mapsource Topo Pro. Network the two PC's however you choose, probably by sharing a drive on one or the other, and copy over that full City Navigator directory to the exact same place on the new laptop. With any luck, there will be a full directory there that says something close to City Navigator (Might be just "CN"). Garmin often installs them right at the root of the c: drive, in c:\garmin. Find the directory where your map files are currently stored. That will save the unlock file you will need later. Go there, click on the "unlock regions" tab, select all the map areas, and hit export. In the utilities menu of Mapsource, there should now be a selection to "Manage Map Products".
![how to unlock garmin topo us 24k how to unlock garmin topo us 24k](https://static.garmincdn.com/en/products/010-C1056-00/g/cm-md.jpg)
Repeat until it says there are no updates) From your XP laptop, make sure Garmin MapSource is fully up to date (under the help menu, choose "check for software updates", if it finds one, install it. Migration tool is worth a shot, would be simplest and quickest, but if it is unsuccessful, this might be the next thing to try before breaking down and just buying lifetime updates for the device: