How to clean up disk in windows 7 and get more space

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1. owwww thx dude more sub!!! very helpfull thx
2. its this safe dude ?
   i afraid to do this!
3. i only got 2 GB
4. thanks i subscribe :D #notlikelspamyep it did work but my pc is really bad and slow
5. Thanks! I got extra 30 gb!
6. THX!!!!!
7. does it delete your stuff
8. what if I put clean up system files
9. my disk still had the same
10. Thank's dood nowa can insstal GTA San Adreas A give you a like
11. Thank's dude .
12. Dude u dick i did exactly what u did and my space in the local disk dropped from 5,33Gb free space to 4,51Gb
13. Thx!
14. Does the more options thing delete your programs or trash files only?
15. i will subscrive
16. thanks
17. this will delete your files in C: ?
18. IT DIDNT WORK FOR ME MY THING IS STILL RED IT DIDNT WORK STUPID SHIT AAAAAAAAAAAAAAAAAAAAAAA
19. how to get the disk clean up
20. for some reason i do not have other options??