How to clean unwanted files from a Computer?

Here is the simple way to delete the offline folder files, Temp files and compress old files in windows OS.

Open run command and type cleanmgr in that then press enter.

Then click on OK the other window will open.

Select the C drive and click on OK. It will start scanning the C drive.

After scanning the C drive one new window will open. Then click on all check boxes ( make it tick) and give ok.

In the new window just give Yes, then it will start scanning and clear the unwanted files from C drive.

After this cleaning you will get min 2GB free space in C drive.