How to upgrade operating system?

Yes. For Free. Google "Windows 10 Spring Creators Edition 2018" and use the Media Creation Tool.

Back up everything first!

regardless of what Microsoft say it is still possible to get the free upgrade , type windows 10 free upgrade , I got it for a spare 7 pc , I used a link to Microsoft on a pc gamer search entry.

Harrison Houghton, have you done the upgrade from Win 7 to Win 10, if so any problems ?. Thinking of may be doing this myself.

Tonyq i have pc running 10 , i put free 7 to 10 on my spare one , no problems at all the 10 problems you will get are caused by windows updates , the main problem caused by updates is your pc and web search can get changed to US english , you will know if this happens because amazon prices appear is $ and in word and email the @ symbol wont print when you choose it , plenty of help on here if that happens