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 restart the computer.
As with most computer errors, your first step is to shut down your computer and restart it. This will help you determine whether you have a hard disk problem. If the disk is severely damaged, then your computer will probably fail to restart properly.
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.
You may receive a distorted image when the cable is loose or defective. Disconnect the video cable going from the back of the computer and verify that no pins are bent, burnt or broken. Once verified re-connect the monitor cable. If the refresh rate is not properly set the monitor may have a wavy or an appearance that lines are going down or across the monitor slowly or fast, this may also cause a flickering affect. A distorted image can be caused by magnetic or other types of interference. Verify no speakers, fans or other magnetic devices are close to the monitor.
Verify that the monitor is properly connected in the back of the monitor as well as to the back of the computer. If the monitor appears to be connected properly, verify that a cable is not loose by disconnecting all cables that can be disconnected in the back of the monitor (generally the data cable cannot be disconnected). Next, disconnect the data cable connected to the back of the computer and then reconnect the cable. When connecting the cable in the back of the computer ensure the cable connection is tight. Most Computers will also have screw ends that can be screwed in to hold the connector in place.
If the resolution was recently changed it is possible for the monitor to not auto adjust or shift to the correct size. If this occurs, the resolution can be changed back to the original setting or you can manually adjust the monitor. If a black border exists on the monitor it can generally be resolved by manually adjusting the horizontal or vertical width. Because each monitor is different, the method of adjusting this setting will vary; consult your monitor documentation.
Users who have an optical mechanical mouse (most common mouse for desktop computers) are likely experiencing erratic behavior because the mouse is not clean or is dirty. If you've cleaned the mouse and continue to encounter issues and this mouse has worked in the past fine unfortunately your mouse is likely defective. One additional test that can be done to help determine if this is the case or not is to connect the mouse to another computer. Otherwise, we suggest replacing the mouse.
If you're running any version of Microsoft Windows and are encountering issues with the mouse wheel, first attempt to adjust the mouse settings through the Mouse Properties window. This window can be accessed by opening the Control Panel and double-clicking the Mouse icon.
The keys on a keyboard are only clipped on, with a knife or other thin object, carefully pop the keys off, this will allow you to clean under the keys as well as cleaning the keys themselves (make sure you remember where they went!).
To get into the Windows 7 / 10 Safe mode, as the computer is starting up press and hold your "F8 Key" which should bring up the "Windows Advanced Options Menu". Use your arrow keys to move to "Safe Mode" and press your Enter key.
Close all programs running on the computer and try again. If after closing all programs running on the computer you are still encountering the same issue when attempting to delete files, load the computer into Safe Mode and delete the files.
If you are running Microsoft Windows 7, Windows 10, or a later version of Microsoft Windows, you are eligible to update Microsoft Windows, and in some cases, your computer hardware with the latest drivers through Microsoft's update site, visit http://windowsupdate.microsoft.com. In most cases your computer should be set to automatically update when a new update becomes available.
Users should not simply press the power button or restart the computer while Windows is still running unless there is an issue with the computer. Microsoft has included the shut down feature because it enables a computer to go through all the necessary steps that are required before turning off the computer. In fact many versions of Microsoft Windows will check the computer for any problems if the computer is not shut down properly.
Double click the recycle bin icon on your desktop, here you will see all of the files within your bin. Select the files you wish to recover, right click and choose restore.
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.
Microsoft Internet Explorer users can go to 'Tools' (or the little cog icon in the top left), then go to 'Safety' and choose 'Delete browsing history...', you can then choose to delete your Internet cookies. In Google Chrome, go to 'More Tools' and choose 'Clear browsing data...'. Firefox users can go to 'History', then choose 'Clear recent history...'.