PC housekeeping

Lately when I click on the Accessories folder to defrag my laptop which runs on Windows XP, a pop-up message appears: C:\Windows\system32\defrg.ms Access is denied.

Is my program corrupted?

Huang Yuwen

If you had typed the name of the defrag program as defrg.ms, it is wrong. The correct name is defrag.exe.

That said, my advice would be that you download and install a good anti-virus software such as AVG (http://free.avg.com). Then perform a thorough scan of your whole system.

Answer by MK Wong, an IT lecturer with 30 years' experience in the IT industry.

This story was first published in The Straits Times Digital Life.

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