
| Keystroke | Description |
| Tap F8 every second as the computer starts |
go to Safe mode to load windows without startup and gain access to files |
| press one of del, F2, F10, F12 keys on start up to enter Bios Screen |
enter bios screen for more options - Check Hardware |
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Computer Shows No Sign of Power?
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Computer Powers On... and Then Off
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Computer Powers On But Nothing Happens, no picture?
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| Keystroke | Description |
| Press C during startup | Start up from a bootable CD, DVD, or USB thumb drive (such as OS X install media). |
| Press D during startup | Start up in Apple Hardware Test (AHT). |
| Press Option-Command-P-R until you hear startup sound a second time. |
Reset NVRAM |
| Press Option during startup | Start up in Startup Manager, where you can select an OS X volume to start from. Note: Press N to make the the first bootable Network volume appear as well. |
| Press Eject, F12, or hold the mouse or trackpad button |
Ejects any removable media, such as an optical disc. |
| Press N during startup | Attempt to start up from a compatible network server (NetBoot). |
| Press T during startup | Start up in Target Disk Mode. |
| Press Shift during startup | Start up in Safe Boot mode and temporarily disable login items. |
| Press Command-V during startup | Start up in Verbose mode. |
| Press Command-S during startup | Start up in Single-User mode. |
| Press Option-N during startup | Start from a NetBoot server using the default boot image. |
| Press Command-R during startup |
Start from Lion Recovery1 |
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Set the Homepage for Internet Explorer (IE) *Select Tools (upper left in your browser) *Select "Internet Options" from the pull-down menu *On the page that opens, you'll see an option to Add or Change Home Page (language varies a bit depending on which version of IE you are using). Click on this, and follow the simple steps to re-set your home page. |
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Set Homepage for Safari (Apple/Mac or Windows) *Select Edit (upper left in your browser) *Select "Preferences" from the pull-down menu *On the page that opens, click "General". *You'll see a "Home Page" text box...just enter the page you want to use. |
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If you have license key for Avast! 4.8, you can use the license key for Avast! 5, it work on Avast! 5.
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