InBox

By DON McALLISTER

Welcome to InBox, where we attempt to answer your internet questions.

Q. "I understand that some CDs are degrading over a short number of years. I was of the opinion that they were virtually indestructible. If this is so, are they now a reliable medium for the storage of data? I have been using a USB Pen Drive for short-term storage and transfer of data. Would this be a suitable alternative to CDs for backup and long-term storage of information?" writes Ralph.

A. The designed life of CDs was originally around 10 years, Ralph, but this is very dependent on media quality and storage location. Even a good-quality CD deteriorates under light, if scratched and when exposed to heat.

A safe storage location will increase their life substantially (possibly forever!). If your data is important, store the CD in a dry, dark, out-of-the-way location that enjoys a constant temperature.

To be safer, duplicate data onto the USB drive; this way you can use the older CD technology to recover the data if the newer device fails.

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Q. "I see a sneaky plug for AGV antivirus last week ... I'm using Avast anti-virus. Check out the free home version. The reason: it's free, and was eight hours ahead of internet provider Orcon in detecting the Netsky bug," writes Chris.

A. Avast is another reputable free option, Chris, but space constraints mean I can't list all free options here. No, we don't do sneaky plugs, the intention is to suggest a free alternative.

Protection is only as good as the last update. Sometimes updates don't get picked up, which may be why Orcon was slightly behind the 8 ball on Netsky.

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Q. "This operation has been cancelled due to restrictions in effect in this computer. Please contact your system administrator," pops up when Rey clicks Internet Explorer/Tools/Internet Options. "How can I over-ride this message?" Rey asks.

A. Your login profile was set up on that computer with limited privileges, Rey. This is common policy in many work environments to stop employees changing settings.

You'll have to contact the person who set up the machine and get him or her to grant you access; or log in as an administrator to do the changes.


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