"a windows service with the name MYSQL already e…"的問題
安裝MySQL的時候出現這個報錯：a windows service with the name MYSQL already exists.
Please uninstall this service correctly or choose a different
name for the new service.
開始－－運行－－輸入 regedit，刪除殘留的註冊表信息HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services下面找到MySQL
註冊表信息把它整個刪掉後，重裝mysql成功瞭！
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接著到regedit把註冊表
HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Services/Eventlog/Applications/MySQL
HKEY_LOCAL_MACHINE/SYSTEM/ControlSet002/Services/Eventlog/Applications/MySQL
HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Eventlog/Applications/MySQL