What is Windows Mobile OS?

The latest is Windows 10. It comes as standard on the Lumia 550, 950 and 950 XL. An update for older phones will be available for download soon.

Your phone will notify you once an update is due and provide easy-to-follow instructions. You can also check for updates manually by following these steps:

• Go to Settings

• Press Phone update

• Press Check for updates

• If an update is available you can download it straight away or delay until a more convenient time.

Currently, the only Lumia smartphones supporting Windows 10 are the 550, 950 and 950 XL. However, Microsoft says that an update for other devices will be available soon. Microsoft has announced that the first phones to receive a free upgrade to Windows 10 will be: Lumia 435, Lumia 535, Lumia 635 (1 GB RAM), Lumia 640, Lumia 640 XL, Lumia 735, Lumia 830, and Lumia 930. To check if you can download Windows 10 manually, follow these steps:

• Go to Settings

• Press phone update

• Press Check for updates

• If Windows 10 is available you can download it straight away or delay until a more convenient time.

Newer devices generally speed up after an update. There is a small chance, however, that older devices could slow down – especially if you have loads of saved photos and files. What’s important to remember is that manufacturers only offer updates to devices that have the required speed and power. So if your device is offered the update, then most of the time it will work fine. If it does slow down, then try freeing up some of the memory by deleting old photos, videos and apps.

Follow these steps to back up your data:

• Go to Settings

• Press Backup

• Press Apps + Settings

• Turn on Settings backup

• Then press Back up now