yes

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Across
  1. 3. to install something from a computer
  2. 5. a large quantity of something
  3. 6. more desirable, satisfactory, or effective
  4. 7. to delete something forever
  5. 9. having a lot of money
  6. 11. beginner
  7. 15. to not be disturbed by other people
  8. 16. real and genuine
  9. 17. to keep something for a longer period
  10. 18. metal bar
Down
  1. 1. used in cars to alert other traffic participants
  2. 2. refuse to take notice
  3. 4. to change something
  4. 8. a company or business
  5. 9. synonym or original
  6. 10. a textile material
  7. 12. spend or use something
  8. 13. to not give sufficient attention to something
  9. 14. the whole story of a book or film