My computer says that the Security Certificate has expired or is no longer valid. I can't access the Internet! What should I do?

The vast majority of the time this is an issue with the date and time zone settings within Windows. Normally, Windows automatically updates its time by visiting a website- but if you can’t access the Internet, you will need to set the time manually to get the system in its right mind again. First we’ll show the process for Windows XP, then for Windows Vista or 7.

For Windows XP systems:

1. Right-click the time in the bottom-right corner of the screen and click ‘Adjust Date/Time.’

mcw_xp_adjusting_time_1.png

You will now be in the Date and Time Properties window, pictured below.

mcw_xp_adjusting_time_2.png

2. As you can see, the PC thinks that it is 2:27 AM on May 27th, 1981. Adjust the month, year, day, and current time to match another source (such as your cellphone or another PC). It isn’t necessary to get it down to the second as it will automatically update itself from a website in the future. Here is my corrected example.

mcw_xp_adjusting_time_3.png

As you can see, it is set properly to 12:31 AM on July 17th, 2010.

3. Once the month, year, day and current time are set, click ‘Time Zone’ at the top of the window, then click on the arrow to open the drop-down list.

mcw_xp_adjusting_time_4.png

When the list opens, select your time zone, click ‘Apply’ and you’re done. I set it to Arizona since that is where we here at My Computer Works are headquartered.

mcw_xp_adjusting_time_5.png

Reboot your PC and see if you can get online, then skip to the end of this post.

Now for Windows Vista or Windows 7 systems:

1. Right-click the time in the bottom-right corner of the screen and click ‘Adjust Date/Time.’

mcw_vista_7_adjusting_time_1.png

2. This will bring up the Date and Time window. Click ‘Change date and time…’ You may need to click Yes, Continue or Allow at this point, as in the example below.

mcw_vista_7_adjusting_time_2.png

3. In this window (pictured below) you can see the time and date. The PC thinks that it is 2:09 AM on May 27th, 2081.

mcw_vista_7_adjusting_time_3.png

4. Go ahead and click on the year (in this example, May, 2081) several times to zoom it out.

mcw_vista_7_adjusting_time_4.png

5. Now that it’s “zoomed” out, zoom back in to select the proper time and date, then adjust current time to match another source (such as a wall clock or another PC). It isn’t necessary to get it down to the second as it will automatically update itself from a website in the future.

In this example I zoomed out to the 100-year period pictured above, then progressively zoomed back in to the desired date by clicking 2010-2019, then 2010, then July, then the 17th to reset the date to July 17th, 2010. I then set the time to 1:22:00 AM and clicked ‘OK’ to save the settings and close out of the window.

mcw_vista_7_adjusting_time_5.png

Now that the date is set properly, let’s make sure the timezone is correct.

6. When you click ‘OK’ you will be back in the Date and Time window from Step 2. This time, click ‘Change time zone…’

mcw_vista_7_adjusting_time_6.png

This is the Time Zone Settings window. Clicking the drop arrow will give you a drop-down list of time zones.

mcw_vista_7_adjusting_time_7.png

7. Select your time zone, click ‘OK’, and you’re done. Reboot your PC and see if you can get online.

If this happens often, or if the settings you change reset themselves to something else when you reboot, you have a bad battery (the CMOS, or “see-moss,” battery) on the motherboard. In a desktop PC it isn’t too difficult to replace and they’re pretty cheap from your local PC hardware/battery store (Fry’s Electronics, Radio Shack or an online retailer such as Amazon.com).

While it is somewhat easy to replace a battery in a desktop PC, My Computer Works does NOT recommend that you attempt to replace a CMOS battery inside of a laptop unless you have a high degree of technical knowledge and mechanical skill- along with a guide specific to that model of laptop.

We hope this is enough to get you on your way- if it isn’t, feel free to contact us at 1-800-990-4629, visit our website or send us a question here and we will be happy to help!

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My Computer Works provides this service free of charge, and is not responsible or liable for any impact on your system, nor any actions performed as a result of this posting.

ZoundryDocumentFirst we’ll show the process for Windows XP, then for Windows Vista or 7.

For Windows XP systems:

1. Right-click the time in the bottom-right corner of the screen and click ‘Adjust Date/Time.’

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