今晚在卸载MyEclipse时出现An error has occurred,See error log for more details的错误，打开相应路径下的文件查看得如下：
!SESSION 2016-02-23 23:39:31.743 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.6.0_12
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=zh_CN
Command-line arguments: -os win32 -ws win32 -arch x86
!ENTRY org.eclipse.osgi 4 0 2016-02-23 23:39:33.095
!MESSAGE Startup error
!STACK 1
java.lang.UnsatisfiedLinkError: C:UserswustczxAppDataLocalMyEclipseMyEclipse 10Uninstallerjrein
io.dll: %1 不是有效的 Win32 应用程序。
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(Unknown Source)
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at sun.security.action.LoadLibraryAction.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.ch.Util.load(Unknown Source)
at sun.nio.ch.FileChannelImpl.<clinit>(Unknown Source)
at java.io.RandomAccessFile.getChannel(Unknown Source)
at org.eclipse.core.runtime.internal.adaptor.Locker_JavaNio.lock(Locker_JavaNio.java:39)
at org.eclipse.osgi.storagemanager.StorageManager.lock(StorageManager.java:387)
at org.eclipse.osgi.storagemanager.StorageManager.open(StorageManager.java:688)
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.initFileManager(BaseStorage.java:213)
at org.eclipse.osgi.internal.baseadaptor.BaseStorage.initialize(BaseStorage.java:147)
at org.eclipse.osgi.baseadaptor.BaseAdaptor.initializeStorage(BaseAdaptor.java:114)
at org.eclipse.osgi.framework.internal.core.Framework.initialize(Framework.java:185)
at org.eclipse.osgi.framework.internal.core.Framework.<init>(Framework.java:157)
at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:286)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:175)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:620)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
at org.eclipse.equinox.launcher.Main.run(Main.java:1408)
于是，在网上搜索各种解决方法，然而并没解决问题。
解决方法：找到MyEclipse安装文件并打开，选择next,再选择Uninstall MyEclipse并点击next按钮，继续next即可。完成后，打开控制面板发现已下载（可能标志还在，点击2下就会消失）。