Is there a window errors removers offered online t5hat REALY work?

I would like to know if anyone has purchased a Window error removal online that really works? No sales gimmickes Need answer/ Only people who have bought one please answer. Thank you

JMK Just My Knowledge2014-02-15T16:57:16Z

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Generally all those apps promising to repair Windows are useless. Antivirus and Antimalware software won't remove system errors just remove malware that might disturb correct functionality. Most dangerous applications are those promising to repair your Registry. In best case, they don't do anything really useful except removing some garbage and "conpress" Registry - actually just cosmetics! But I've neve noted any improvment after that! Wors case, some applications might stop working, some origina license mige be lost and you might need reinstall them or even your computer system might collapse.
In some cases the error is notified by windows, like some DLL or EXE missig or some service stopped but in most cases all you note is that your computer is getting slower and less responsive, some internal application wont work correctly etc. The only final resource to "repair" is reinstalling your Windows.