In the past, if you want to do some advanced task on your computer disk, you will have to buy a good software to finish your IT tasks. It’s really difficult to find a free software at that time. Sometimes, to fix my computer, I have to download trial version of a well-known product to make sure everything I work on my PC is alright. However, that’s a temporary solution because these software has limited trial-time, therefore you can’t continue to take advantage of the powerful software after trial is over.

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