I wish to remove temporary files on my desktop

Hi transactions
 
Welcome to the Community Forums.
 
You best bet is to get one of a number of freeware temporary & junk file cleaners that are available out there on the Web.  A firm favourite with the Community members is CCleaner (from Piriform.com) available in post installer & portable format, and which is generally considered safe to use.
 
Have a look at that and see if it will meet your needs.  But as always when using this sort of software make sure that you at the very least set a System Restore Point prior to running it and better still, if you have the facility take a back up of your data or image your disk...better to be safe than sorry.
 
Hope that helps?
 
Regards, Baldrick

Or alternately you can run Windows Disk Cleanup!