[MATLAB基础] 求助matlab2012 安装问题

[小tom]

求助各位大神啊 我今天安装的matlab2012 打开时总是出现

Attempt to execute SCRIPT pathdef as a function:
E:\matlabR2012a\matlabr2012\toolbox\local\pathdef.m
Warning: MATLAB did not appear to successfully set the search path. To recover for this session of MATLAB, type "restoredefaultpath;matlabrc". To find out how to avoid this warning the next time you start MATLAB, type "docsearch problem path" after recovering for this session.
Warning: Duplicate directory name: E:\matlabR2012a\matlabr2012\toolbox\local.
Warning: Initializing Handle Graphics failed in matlabrc.
This indicates a potentially serious problem in your MATLAB setup,
which should be resolved as soon as possible. Error detected was:
MATLAB:undefinedVarOrClass
Undefined variable "graphics" or class "graphics.internal.initializeMATLABRoot".
Warning: Initializing Java preferences failed in matlabrc.
This indicates a potentially serious problem in your MATLAB setup,
which should be resolved as soon as possible. Error detected was:
MATLAB:UndefinedFunction
Undefined function 'usejava' for input arguments of type 'char'.
> In matlabrc at 113
Warning: Failed to add default profiler filters.
> In matlabrc at 168



想卸载的时候又提示无法启动卸载程序 因为丢失java-launcher.dll

到底该怎么解决呢？ 网上的做法我试了没用 要卸载重装的话又该怎么卸载呢？？ 求助啊~~~