If a computer says that the security certificate has expired, the date and time on the computer need to be checked; if they are correct, a computer technician should be called to make sure that there are no viruses on the computer. The security certificate can help protect the data that is on a computer.Know More
Most computers come equipped with a security certificate. This certificate ensures that the privacy of the computer user is kept safe and that other people do not have access to the information that is contained on the computer, whether the information has been sent to a server or not.
A security certificate relies on the date and time of the computer and can be affected by the time zone that is set on the computer. To ensure that the security certificate message is not simply coming up because of an incorrect time, the time needs to be set correctly. This can be done in the settings section on most computers. Once the time has been verified or changed to ensure that it is correct, the browser should be closed and reopened to determine if that was the problem. If that does not solve the problem, a computer technician will be able to check for and remove any viruses that are affecting the security section of the computer.Learn more about Computer Help
For computers with Windows operating systems experiencing sound problems, verify that the speakers are turned on, and then run the "Playing Audio" troubleshooter to locate the source of the problem. If the problem is related to hardware, that hardware may need to be replaced in order to restore sound.Full Answer >
Though computers use URLs (uniform resource locators) to connect to various websites over the internet, they do not possess their own URLs, but instead have an IP address, which is a series of numbers, usually in the pattern of xxx.xxx.xxx.xxx. The IP address contains four sets of numbers, separated by periods, which contain either two or three numbers each. To find the IP address of a computer, open the command prompt via the Accessories menu, type in "ipconfig" and hit enter.Full Answer >
To write letters on computers, individuals must use word processing applications, such as Microsoft Word or Apache OpenOffice Writer. Although Microsoft Word is the most widely-used word processor, Word documents are cross-compatible with many other programs.Full Answer >
To transfer files between computers, connect a USB drive to the Windows 7 recipient computer, start the Windows Easy Transfer utility, and designate it as a new computer in the settings. Connect the USB drive to the old computer, and use WET to transfer the files.Full Answer >