1、下载好idea，注意版本
2、下载破解文件
下面是通过安装补丁破解，
第一步，下载补丁（根据自己的IDEA版本下载下面的破解补丁）：
这个地址自己选择对应的版本和文件
把补丁放入idea的安装目录的bin目录下面
第二步、修改idea的bin目录下两个后缀.vmoptions的文件信息，一个idea.exe.vmoptions，一个是idea64.exe.vmoptions。
用记事本打开，并在文件最下面添加补丁的路径信息（刚放到idea bin下的补丁路径），
-javaagent:F:\IntelliJ IDEA 2018.3.5\bin\JetbrainsIdesCrack-4.2-release-sha1-3323d5d0b82e716609808090d3dc7cb3198b8c4b.jar
F:\IntelliJ IDEA 2018.3.5\bin\JetbrainsIdesCrack-4.2-release-sha1-3323d5d0b82e716609808090d3dc7cb3198b8c4b.jar为补丁的路径。所以补丁可以随意放置，名字也可以修改。看个人习惯
如图：
第三步、启动idea
复制下面信息，并修改用户名和邮箱信息，（填写自己的用户名和邮箱地址）
在activition code中填写信息
激活时间可以自己修改
ThisCrackLicenseId-{
"licenseId":"ThisCrackLicenseId",
"licenseeName":"xxx",
"assigneeName":"",
"assigneeEmail":"[email protected]",
"licenseRestriction":"For This Crack, Only Test! Please support genuine!!!",
"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"}
],
"hash":"2911276/0",
"gracePeriodDays":7,
"autoProlongated":false}
tips:如果出现key is vaild的提示。就是补丁的版本不对，重新下载对应的补丁