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今天给大侠带来MATLAB 2013a 的 license 过期的解决办法，话不多说，上货。
两种解决办法：亲测可以使用
第一种办法：修改系统的时间到你的license未过期的时候，你就依然可以使用MATLAB2013a，但是这种方法治标不治本。
第二种方法：彻底解决，强烈推荐。打开text文本编辑器，新建一个license.lic的文件，文件中的内容如下。之后用这个文件覆盖掉MATLAB安装根目录的license文件夹里原来的license.lic文件。关机重启后，就可以正常使用MATLAB2013a。 license.lic文件中写入的内容： INCREMENT Aerospace_Blockset MLM 99 permanent uncounted A05070F00D1EB1F92326 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=216 SN=888888 TS_OK INCREMENT Aerospace_Toolbox MLM 99 permanent uncounted 6090F0C08395D4289512 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=237 SN=888888 TS_OK INCREMENT Bioinformatics_Toolbox MLM 99 permanent uncounted 40E0B0406DE56D23A426 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=190 SN=888888 TS_OK INCREMENT Cert_Kit_IEC MLM 99 permanent uncounted 9080309041D2DCCB2B10 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=179 SN=888888 TS_OK INCREMENT Communication_Blocks MLM 99 permanent uncounted 80E010304ACCEEB5E0AA VENDOR_STRING=QQ=47399897HOSTID=ANY ck=77 SN=888888 TS_OK INCREMENT Communication_Toolbox MLM 99 permanent uncounted C0003000770A1A086530 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=162 SN=888888 TS_OK INCREMENT Compiler MLM 99 permanent uncounted60D0C0F0DC03C2F72FF7 VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=232SN=888888 TS_OK INCREMENT Control_Toolbox MLM 99 permanent uncounted 6020E0B00B7ECE0893BB VENDOR_STRING=QQ=47399897HOSTID=ANY ck=7 SN=888888 TS_OK INCREMENT Curve_Fitting_Toolbox MLM 99 permanent uncounted 10703080061FF9DA5A81 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=229 SN=888888 TS_OK INCREMENT Data_Acq_Toolbox MLM 99 permanent uncounted E0B0E0E05124CF4A1A8D VENDOR_STRING=QQ=47399897HOSTID=ANY ck=21 SN=888888 TS_OK INCREMENT Database_Toolbox MLM 99 permanent uncounted 0010D0B02CA7353F8314 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=230 SN=888888 TS_OK INCREMENT Datafeed_Toolbox MLM 99 permanent uncounted 40905060D1ECD939538F VENDOR_STRING=QQ=47399897HOSTID=ANY ck=185 SN=888888 TS_OK INCREMENT Dial_and_Gauge_Blocks MLM 99 permanent uncounted A0F05070AA9AEBF40588 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=226 SN=888888 TS_OK INCREMENT Distrib_Computing_Toolbox MLM 99 permanent uncounted 5000D00031D2C6B89F9C VENDOR_STRING=QQ=47399897HOSTID=ANY ck=229 SN=888888 TS_OK INCREMENT EDA_Simulator_Link MLM 99 permanent uncounted E070C0C02B4B90B5A8D0 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=205 SN=888888 TS_OK INCREMENT Econometrics_Toolbox MLM 99 permanent uncounted 505010F00EB1289A73BA VENDOR_STRING=QQ=47399897HOSTID=ANY ck=149 SN=888888 TS_OK INCREMENT Embedded_IDE_Link MLM 99 permanent uncounted 90E01090A9BDA4FF67D7 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=254 SN=888888 TS_OK INCREMENT Excel_Link MLM 99 permanent uncountedE0800080FED6DF10E43F VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=207SN=888888 TS_OK INCREMENT Filter_Design_HDL_Coder MLM 99 permanent uncounted 3050B02039903259577E VENDOR_STRING=QQ=47399897HOSTID=ANY ck=181 SN=888888 TS_OK INCREMENT Filter_Design_Toolbox MLM 99 permanent uncounted 3000E0B02C875CDF5823 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=239 SN=888888 TS_OK INCREMENT Fin_Derivatives_Toolbox MLM 99 permanent uncounted 70A010D017A8FA7CE955 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=247 SN=888888 TS_OK INCREMENT Financial_Toolbox MLM 99 permanent uncounted 20E050A0ACC6A69E7AEE VENDOR_STRING=QQ=47399897HOSTID=ANY ck=241 SN=888888 TS_OK INCREMENT Fixed-Point_Blocks MLM 99 permanent uncounted E0206040ED6EF9BCCB3B VENDOR_STRING=QQ=47399897HOSTID=ANY ck=11 SN=888888 TS_OK INCREMENT Fixed_Income_Toolbox MLM 99 permanent uncounted 50E090D0C130F6416176 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=132 SN=888888 TS_OK INCREMENT Fixed_Point_Toolbox MLM 99 permanent uncounted C07000703494010EF55C VENDOR_STRING=QQ=47399897HOSTID=ANY ck=154 SN=888888 TS_OK INCREMENT Fuzzy_Toolbox MLM 99 permanent uncounted D04010B048FB8D350E4E VENDOR_STRING=QQ=47399897HOSTID=ANY ck=233 SN=888888 TS_OK INCREMENT GADS_Toolbox MLM 99 permanent uncounted 50D0900087384B51643A VENDOR_STRING=QQ=47399897HOSTID=ANY ck=210 SN=888888 TS_OK INCREMENT Identification_Toolbox MLM 99 permanent uncounted 00707080A0CC0D8FB71E VENDOR_STRING=QQ=47399897HOSTID=ANY ck=190 SN=888888 TS_OK INCREMENT Image_Acquisition_Toolbox MLM 99 permanent uncounted 50D0D0905C22130C4D2A VENDOR_STRING=QQ=47399897HOSTID=ANY ck=208 SN=888888 TS_OK INCREMENT Image_Toolbox MLM 99 permanent uncounted B01030E0F517B496275C VENDOR_STRING=QQ=47399897HOSTID=ANY ck=133 SN=888888 TS_OK INCREMENT Instr_Control_Toolbox MLM 99 permanent uncounted 80C0505033C162F3017F VENDOR_STRING=QQ=47399897HOSTID=ANY ck=169 SN=888888 TS_OK INCREMENT MAP_Toolbox MLM 99 permanent uncountedC090E0E022BD3BA852B3 VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=4SN=888888 TS_OK INCREMENT MATLAB_Report_Gen MLM 99 permanent uncounted 80B000B00052F620FB11 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=190 SN=888888 TS_OK INCREMENT MATLAB_Distrib_Comp_Engine MLM 99 permanentuncounted 804080300CB545FBECE8 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=233 SN=888888 TS_OK INCREMENT MATLAB_Builder_for_Java MLM 99 permanent uncounted 404040707C2CA5639DEE VENDOR_STRING=QQ=47399897HOSTID=ANY ck=186 SN=888888 TS_OK INCREMENT MATLAB_Builder_for_dot_Net MLM 99 permanentuncounted 8070E0D0FFAA645DA39D VENDOR_STRING=QQ=47399897HOSTID=ANY ck=255 SN=888888 TS_OK INCREMENT MATLAB MLM 99 permanent uncounted50E0F0D08F6CEF24CC5B VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=14SN=888888 TS_OK INCREMENT MATLAB_Excel_Builder MLM 99 permanent uncounted 50106010BCBF479623D9 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=206 SN=888888 TS_OK INCREMENT MBC_Toolbox MLM 99 permanent uncountedB05000C02F157C5BEE28 VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=198SN=888888 TS_OK INCREMENT MPC_Toolbox MLM 99 permanent uncounted3050206087BF1C33045E VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=203SN=888888 TS_OK INCREMENT Neural_Network_Toolbox MLM 99 permanent uncounted D0009010451EEB5A283F VENDOR_STRING=QQ=47399897HOSTID=ANY ck=198 SN=888888 TS_OK INCREMENT OPC_Toolbox MLM 99 permanent uncounted50F070404BE7E269740A VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=198SN=888888 TS_OK INCREMENT Optimization_Toolbox MLM 99 permanent uncounted E0F00030546D043DF202 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=152 SN=888888 TS_OK INCREMENT PDE_Toolbox MLM 99 permanent uncounted5080705081D393548E6E VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=166SN=888888 TS_OK INCREMENT Power_System_Blocks MLM 99 permanent uncounted 90405000B77AC9D2CBB9 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=216 SN=888888 TS_OK INCREMENT Qual_Kit_DO MLM 99 permanent uncountedD01010C04E05A80BCD10 VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=190SN=888888 TS_OK INCREMENT RF_Blockset MLM 99 permanent uncountedA0A00020B1FED5C15465 VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=201SN=888888 TS_OK INCREMENT RF_Toolbox MLM 99 permanent uncounted90F0905068868B4A97C8 VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=168SN=888888 TS_OK INCREMENT RTW_Embedded_Coder MLM 99 permanent uncounted A0D0E0C0B3978D64A1A3 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=250 SN=888888 TS_OK INCREMENT Real-Time_Win_Target MLM 99 permanent uncounted 300060D0E68A928A0DBC VENDOR_STRING=QQ=47399897HOSTID=ANY ck=208 SN=888888 TS_OK INCREMENT Real-Time_Workshop MLM 99 permanent uncounted 7020D04006040066FAEA VENDOR_STRING=QQ=47399897HOSTID=ANY ck=134 SN=888888 TS_OK INCREMENT Robust_Toolbox MLM 99 permanent uncounted 1040201098A2D1E80D25 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=173 SN=888888 TS_OK INCREMENT SIMULINK MLM 99 permanent uncounted30D05030E2F9BBB8FCC2 VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=213SN=888888 TS_OK INCREMENT SIMULINK_Report_Gen MLM 99 permanent uncounted E070B070769E869B6A03 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=206 SN=888888 TS_OK INCREMENT SL_Verification_Validation MLM 99 permanentuncounted C0309000FB238CC772CC VENDOR_STRING=QQ=47399897HOSTID=ANY ck=251 SN=888888 TS_OK INCREMENT Signal_Blocks MLM 99 permanent uncounted F000A0702665C46E07FF VENDOR_STRING=QQ=47399897HOSTID=ANY ck=196 SN=888888 TS_OK INCREMENT Signal_Toolbox MLM 99 permanent uncounted E070B0403768324D14C1 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=185 SN=888888 TS_OK INCREMENT SimBiology MLM 99 permanent uncounted404080202CFCE52296A3 VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=187SN=888888 TS_OK INCREMENT SimDriveline MLM 99 permanent uncounted B030A0704195F94612EF VENDOR_STRING=QQ=47399897HOSTID=ANY ck=163 SN=888888 TS_OK INCREMENT SimElectronics MLM 99 permanent uncounted F0D050A035E4883B1E9D VENDOR_STRING=QQ=47399897HOSTID=ANY ck=246 SN=888888 TS_OK INCREMENT SimEvents MLM 99 permanent uncounted30E02040EB0C922C71A0 VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=216SN=888888 TS_OK INCREMENT SimHydraulics MLM 99 permanent uncounted C07090B0F394787D61B7 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=185 SN=888888 TS_OK INCREMENT SimMechanics MLM 99 permanent uncounted 909000103231C13BB4BB VENDOR_STRING=QQ=47399897HOSTID=ANY ck=148 SN=888888 TS_OK INCREMENT Simscape MLM 99 permanent uncounted8020D0906FAC13D095EC VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=211SN=888888 TS_OK INCREMENT Simulink_Control_Design MLM 99 permanent uncounted D09060704E819BCDDD32 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=206 SN=888888 TS_OK INCREMENT Simulink_Design_Optim MLM 99 permanent uncounted 6020C080F9B2D2F92E1C VENDOR_STRING=QQ=47399897HOSTID=ANY ck=243 SN=888888 TS_OK INCREMENT Simulink_Design_Verifier MLM 99 permanent uncounted 8080D0002C390CBB546E VENDOR_STRING=QQ=47399897HOSTID=ANY ck=196 SN=888888 TS_OK INCREMENT Simulink_HDL_Coder MLM 99 permanent uncounted F05000C0108BB935AD39 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=215 SN=888888 TS_OK INCREMENT Simulink_PLC_Coder MLM 99 permanent uncounted 803090F0C42068269D45 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=194 SN=888888 TS_OK INCREMENT Spline_Toolbox MLM 99 permanent uncounted 30E0B0A014330227515B VENDOR_STRING=QQ=47399897HOSTID=ANY ck=112 SN=888888 TS_OK INCREMENT Stateflow_Coder MLM 99 permanent uncounted 2050D0B06F85F87E216B VENDOR_STRING=QQ=47399897HOSTID=ANY ck=199 SN=888888 TS_OK INCREMENT Stateflow MLM 99 permanent uncounted4030C0C01E0B917BED3F VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=223SN=888888 TS_OK INCREMENT Statistics_Toolbox MLM 99 permanent uncounted 7010C05033AC51015B7C VENDOR_STRING=QQ=47399897HOSTID=ANY ck=178 SN=888888 TS_OK INCREMENT Symbolic_Toolbox MLM 99 permanent uncounted 80D09090A1ADD082F35D VENDOR_STRING=QQ=47399897HOSTID=ANY ck=33 SN=888888 TS_OK INCREMENT SystemTest MLM 99 permanent uncountedB0A0A0E039DA5A2F4AA0 VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=29SN=888888 TS_OK INCREMENT Target_Support_Package MLM 99 permanent uncounted 207000609E1847CC5A6E VENDOR_STRING=QQ=47399897HOSTID=ANY ck=172 SN=888888 TS_OK INCREMENT Vehicle_Network_Toolbox MLM 99 permanent uncounted 00C02010ABF2A8B8152B VENDOR_STRING=QQ=47399897HOSTID=ANY ck=11 SN=888888 TS_OK INCREMENT Video_and_Image_Blockset MLM 99 permanent uncounted 107070B0AF7901361B1E VENDOR_STRING=QQ=47399897HOSTID=ANY ck=162 SN=888888 TS_OK INCREMENT Virtual_Reality_Toolbox MLM 99 permanent uncounted B010002042F6C767442D VENDOR_STRING=QQ=47399897HOSTID=ANY ck=205 SN=888888 TS_OK INCREMENT Wavelet_Toolbox MLM 99 permanent uncounted 30C0F0800F9B41DD8577 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=238 SN=888888 TS_OK INCREMENT XPC_Embedded_Option MLM 99 permanent uncounted 102000905C51C5DE4BF0 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=174 SN=888888 TS_OK INCREMENT XPC_Target MLM 99 permanent uncounted6090B0000421BEBA6810 VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=136SN=888888 TS_OK INCREMENT Sensor_Array_Toolbox MLM 99 permanent uncounted E0008030D7E6251042F1 VENDOR_STRING=QQ=47399897HOSTID=ANY ck=179 SN=888888 TS_OK HostID前面要加空格
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