PC Help Center

General

• What is the difference between 32-bit and 64-bit?
• What causes high CPU usage and how can I reduce it?
• What is the difference between a backslash and a forward slash?
• More...

Hardware

• What is the hidden SSID of my Wi-Fi router?
• How do I play or burn a CD/DVD if my computer doesn't have a CD/DVD drive?
• What is my router password?
• More...

Software

• How do I take a screenshot of a window in macOS without a shadow?
• How do I fix the Java command-line error in macOS Sierra?
• Where did the disk space on my Mac go?
• More...

Storage

• Why can't I use all the space on my storage device?
• What does "bits per die" mean?
• How do I transfer my files to a new computer?
• More...

Displays

• How do I connect a mobile device to my TV?
• Why can't I connect my laptop to a TV using a VGA cable?
• How do I connect my laptop to an HDTV?
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Laptops

• Why does my laptop freeze when playing a video game?
• Why has my laptop gotten slower?
• What laptop should I buy for Christmas 2017?
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Internet

• Will minimizing or hiding my browser window affect my download speed?
• What does the letter "L" mean in an email message?
• Why do I get a 400 error when visiting a website?
• More...

The Web

• How do I disable my browser's pop-up blocker?
• Why won't Java applets run in my Web browser?
• What are environment variables used by Web servers?
• More...

Email

• Why does Apple Mail hang in OS X 10.10 Yosemite?
• Why do question marks show up in my emails?
• Why won't some links open in email messages?
• More...