Hell problems

Pleas I don spek english....... :frown: I have lot of problems whit the windows 7. I cant use explorer, cant use control panel, cant set up thems... I'm geting crazy I need heeeeelp The mesage that apeers every time that I trie to open control panel is:

windows cannot access the specifed device, path, or file. You may not have the appropiate permissions to acces the item.

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