Suppose you are trying to book a movie ticket online, and just before you enter your credit card details, a security certificate error gets displayed. Getting a security error message while trying to access a website where you plan to furnish personal or credit card details can be a cause for concern. First and foremost, check the time settings on your computer. Inaccurate time settings can be a likely cause for this error. In case of incorrect settings, set the system time to the correct time. Websites have their system time settings. If this timing doesn't match your computer's system settings, a security certificate error is likely to pop up. A computer contains a CMOS chip, whose main function is to store the system time. If this chip corrupts, its stored data is lost. This resets the system date and timing back to the default timing, which in turn causes the certificate error. To resolve this issue, ensure that you update the system time as per the daylight saving time. Another option is to synchronize the system date and time with the Internet time. Although this error annoys almost everyone who encounters it, resolving it is quite simple. Step 1: Click on Internet Options ➜ Advanced Tab Step 2: Scroll down to 'Security' option in the Internet Options window. Step 3: Uncheck 'Check for publisher's certificate revocation' and 'Check for server certificate revocation'. Step 4: Click on Apply ➜ OK, to apply the settings. Step 5: Restart Internet explorer. Step 1: Click on 'Customize and Control Google Chrome' button ➜ Settings Step 2: Scroll down and click on HTTPS/SSL ➜ Manage certificates Step 3: Certificates window opens up ➜ Select the certificates to be imported ➜ Click on Import button. Step 4: Restart the browser for the changes to take effect. Step 1: Click on 'Open Menu' ➜ Options. Step 2: Options window opens up ➜ Click on Certificates. Step 3: Click on View Certificates button. Step 4: Certificate Manager window opens up, which consists of the certificate names listed. Step 4: Select the required certificate ➜ Click on Import button. Step 5: Restart the browser for the changes to reflect. Step 1: Right click on the date time function in the system tray. Step 2: Click on Adjust Date/Time. Step 3: Date and Time window opens up. Click on 'Change Date and Time'. Step 4: Date and Time Settings window opens up. Select the correct date and time. ➜ Click on Ok. Step 5: The system time can be set to be sync with Internet time server too. ✦ Check if your system's date and time are set correctly. If not, change them to the correct date-time settings. ✦ Check if the certificate has gone obsolete. ✦ Check the URL in the browser address bar, if this error pops up, while you are trying to open a website. If it doesn't match the desired URL, retype the website address in the address bar. ✦ Check the security settings of your browser. Browsers security settings can disable websites from opening. Security certificate errors can easily be solved if the problem persists at our end. However, if these errors appear due to incorrect time settings at website's end, this problem needs to be addressed to the website. Now that you know how to get rid of security certificate errors, fix the one that pops up on your computer.