PC Tune up -- AVG vs Avira vs Ccleaner

Other products
1

I ran Avira, AVG, and CCleaner, one by one, and recorded their findings. No changes were made in the PC from start to the end of these tests. Everything being equal, three tools were given identical environment. Yet results were surprisingly different. Which one to trust is the question?
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Avira - Registry cleaner 2,307 and Junk file cleaner 51,931
AVG - Registry cleaner 126 and Junk file cleaner 20,525
CCleaner - Registry cleaner 21 and Junk file cleaner 2,500 approx
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I wanted to buy one paid version of any of these? But findings by each contradict the other? Any suggestions on selection of PC optimizers?
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Windows 8.1 x64

3

Hello Maanoj. I would request you to go with AVG products, we will give you full protection to your computer. To know more about AVG products please click on this link: http://avgread.me/1LKv8dv  and connect to our support team. Rajendra, AVG Customer Care.

2

Hello Maanoj. I would request you to go with AVG products, we will give you full protection to your computer. To know more about AVG products please click on this link: http://avgread.me/1LKv8dv  and connect to our support team. Rajendra, AVG Customer Care.