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First check the computer's power cord to make sure it is completely plugged into the wall socket. If you are using a plug strip, make sure it is completely plugged into the wall socket and that the power switch on the plug strip is turned on. Some plug strips also have a built in circuit breaker which usually looks like a black or red button near the power switch. Press the button to reset it and see if that solves the problem.
There are many reasons why a computer may just stop working or "freeze". Most of the time there isn't much we can do about it, it is a fact of life that computer programs have become so complex that occasionally users will experience problems even when performing common tasks. When your computer no longer responds to keyboard commands your best bet is to re-boot the computer.
Make sure the monitor is on. If no power light (green or orange light) is seen on the monitor display try pressing the power button until it comes on. If your computer monitor was on and you stepped away from the computer and upon returning it was black it's likely that the computer is asleep. Try moving your mouse, clicking the mouse buttons, and/or pressing any key (space bar) on the keyboard to wake it up. Make sure that the monitor is connected properly to the back of the computer.
When printing on untraditional paper your printer may experience smudges, un-even or crooked text, and/or text that runs off the edges of the paper. Your printer may be printing fuzzy, blurry, and/or other faint text because of dirty print heads. All modern printers have some type of printer cleaning, self-test, and/or diagnose mode that can be performed to check and clean the printers print heads and other internal equipment used to print.
No. Computer viruses are software code designed to spread to computer files and other computers, delete files, and cause other problems with the data on the computer. So if you're experiencing an issue with a hardware device such as your printer, video card, sound card, etc. it is not due to a virus.
Microsoft Internet Explorer users can go to tools and then choose 'Delete browsing history..', you can then choose to delete your Internet cookies.
The normal shutdown procedure closes all running processes, offers to let you save any altered open documents, writes session data to the hard drive, flushes the disk cache and de-initializes the protected mode drivers which are the heart of the operating system. Only when all the assigned tasks are finalized your computer automatically shuts itself off.
A Firewall is either a hardware device, such as a broadband router with a built-in firewall, or a software program, whose main purpose is to allow or block incoming or outgoing Internet Protocol traffic, to-or-from your computer, or network.