PC Help Center

Answers to Personal Computing Questions

Software Questions

1. How do I fix the Java command-line error in macOS Sierra?
2. Where did the disk space on my Mac go?
3. What is a Microsoft Visual C++ redistributable package?
4. How do I install or upgrade an operating system without a CD or DVD drive?
5. How do I force an iCloud folder to refresh in OS X?
6. How do I create a PDF document in Mac OS X?
7. How do I fix DPC Watchdog Violation errors in Windows 8?
8. How do I access and edit the Windows registry?
9. Why do some software programs come in 1 PC and 3 PC editions?
10. How can I reduce the file size of an image file?
11. How do I permanently remove files from my computer?
12. What file format should I use when scanning documents?
13. How do I share a printer with multiple computers?
14. What is the difference between runtime and compile time?
15. Why is my iPhone not showing up in iTunes?
16. How do I view my system properties in Windows 7?
17. How do I log in to Mac OS X if I forgot the administrator password?
18. What are examples of window elements?
19. What is the difference between threads and processes?
20. What is the Ruler option in Microsoft Word?
21. What is an insertion point?
22. What does it mean to perform a local install?
23. What does Paste Special mean?
24. What is a distro?
25. Why do I get #REF! errors in my spreadsheet program?
26. What are primitive and non-primitive data types?
27. What are apps?
28. What is the difference between a .LOG file and a .TXT file?
29. What is a PUP file?
30. What is a boot screen and how do I change it?
31. What is a zero-byte file?
32. What does it mean to mount or unmount a disk image?
33. What does it mean when a file's startup location is LM Run?
34. What is an RTE file?
35. What is the difference between canvas size and image size?
36. What are the function keys at the top of my keyboard for?
37. How can I tell if my hard disk is formatted as FAT32 or NTFS?
38. How do I copy an audio CD to a blank CD using iTunes?
39. Which audio file format is best for storing lots of music with high-quality sound?
40. What is the difference between a startup disk and a bootable disk?
41. What does software programming involve?
42. What is the difference between Notepad and WordPad?
43. What is Mac OS X 10.4 Tiger?
44. What are Windows .cab files used for?
45. Why does a program say it requires more memory even though I have enough disk space?
46. Do I need a credit card to use iTunes?
47. Can I install Microsoft Works and Microsoft Word on the same computer?
48. How can I prevent others from taking data off my computer?
49. How do I share files between two computers?
50. What does Adobe Reader do?
51. How do I start my Windows computer in Safe Mode?
52. What is the "Desktop" and how can I customize it?
53. What does a "Clean Install" mean when upgrading to Mac OS X?
54. What is the best program to prevent or remove spyware from my computer?
55. What are the differences between PICT, TIFF, and JPEG images?
56. What is a system.ini file?
57. What is the difference between a file and a folder?
58. What are bullets and when do you use them?
59. What does "double spacing" mean?
60. What is the difference between Save and Save As?
61. What is an "application?"
62. How do I take a screen shot of the current window on my computer?
63. Why does my computer's clock lose several minutes each day?
64. How do I open a DLL file?
65. How do you open a ZIP (.zip) file?
66. How do I change the "read-only" attribute of a file in Windows 98?
67. What is a tree pane and a content pane?
68. What is the purpose of a device driver?
69. What is the advantage of using a wizard to create a new document or project?