I can't change the folder option to view hidden files. After I change it, and click ok, the hidden files will not show up. It will still in the option don't show hidden file when check back the folder option. How should I do to solve this? Is this show that I have infected with some kind of virus? As my antivirus also being disabled every time I start my pc. Besides that, my system restore also not working. all the previous restore points are lost. In fact it say can't run system restore.
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