親測可用。

使用lanyu註冊啟用，在2018.2版本之前都是沒問題，但是2.5就不行了，而且去http://idea.lanyus.com/網站獲取的啟用碼都不行。

搜尋的時候找到了一篇啟用2.5版本的idea 直到時間是2100年；

第一：下載2.5idea版本的補丁

連結：https://pan.baidu.com/s/1hNCs0kyd3zpkcqVOJB7eZw  提取碼：yvwo  第二：把下載好的補丁複製到idea的安裝目錄/bin下面

第三：找到/bin目錄下面的idea.exe.vmoptions和idea64.exe.vmpotions，

第四：右擊開啟這兩個檔案，在最下面新增一行-javaagent:E:/idea/IntelliJ IDEA 2018.2.5/bin/JetbrainsCrack-3.1-release-enc.jar

其中後面的路徑是你補丁的路徑替換成你的路徑就可以

第五步：儲存之後，開啟Idea—Activation Code——輸入啟用碼（複製啟用碼時可能會帶有部落格的原創宣告，刪掉即可）

{
    "licenseId": "ThisCrackLicenseId",
    "licenseeName": "Demon",
    "assigneeName": "Demon",
    "assigneeEmail": "[email protected]",
    "licenseRestriction": "Thanks Rover12421 Crack",
    "checkConcurrentUse": false,
    "products": [
        {
            "code": "II",
            "paidUpTo": "2099-12-31"
        },
        {
            "code": "DM",
            "paidUpTo": "2099-12-31"
        },
        {
            "code": "AC",
            "paidUpTo": "2099-12-31"
        },
        {
            "code": "RS0",
            "paidUpTo": "2099-12-31"
        },
        {
            "code": "WS",
            "paidUpTo": "2099-12-31"
        },
        {
            "code": "DPN",
            "paidUpTo": "2099-12-31"
        },
        {
            "code": "RC",
            "paidUpTo": "2099-12-31"
        },
        {
            "code": "PS",
            "paidUpTo": "2099-12-31"
        },
        {
            "code": "DC",
            "paidUpTo": "2099-12-31"
        },
        {
            "code": "RM",
            "paidUpTo": "2099-12-31"
        },
        {
            "code": "CL",
            "paidUpTo": "2099-12-31"
        },
        {
            "code": "PC",
            "paidUpTo": "2099-12-31"
        },
        {
            "code": "DB",
            "paidUpTo": "2099-12-31"
        },
        {
            "code": "GO",
            "paidUpTo": "2099-12-31"
        },
        {
            "code": "RD",
            "paidUpTo": "2099-12-31"
        }

    ],
    "hash": "2911276/0",
    "gracePeriodDays": 7,
    "autoProlongated": false
}
 

第六步：輸入完成後，點選OK即可，這時再開啟軟體就會發現是已經激活了的，直到2100年