You can free up valuable space by deleting temporary files from your Windows operating system.
You can delete these files by either using third party tools like CCleaner or by a more safe and easy method which is through Settings app.
Deleing temporary files in Windows 10
Step 1: Open Settings by clicking its icon from the start menu.
Step 2: At the home page click on System icon.
Step 3: Click on Storage from the list, now select the drive where Windows 10 is installed. For convenience, on the Settings page, Windows 10 displays Windows logo on the drive where Windows 10 is installed.
Step 4: When you will click on the Storage drive you will see Storage usage page. The page displays the disk space used by system and reserved files, apps & games, documents, pictures, music, videos, mail, desktop, other users, maps, OneDrive, and temporary files.
Step 5: Just below the Temporary files entry, Windows 10 displays the space used by temporary files. Note that Windows 10 takes in to account of space used by Downloads folder, Recycle Bin, previous version of Windows (Windows.old folder), and temporary files folder while calculating the size of temporary files.
Click on Temporary files.
Step 6: Next, at the Temporary files page, select the check box next to Temporary files and then Remove files button to delete all temporary files from your Windows 10 PC. If you see the confirmation dialog, click Yes or OK button to begin deleting files.
The traditional way of manually cleaning temporary files
Step 1: Open Run command Box.
Step 2: Type %temp% and then press Enter key to open the Temp folder containing temporary files.
Step 3: Select all files and folders and then click the Delete key to delete all temporary files. It’s a good idea to move temporary files to the Recycle Bin and permanently delete them after a few days so that if a program or Windows doesn’t work properly after deleting temporary files, you can restore them.