issue with mdk_pro_eval

Hello,

I would like evaluate MDK professional with 7 days trial, after activating mdk_pro_eval in license management,I encountered an issue during compilation step.

Build output:

*** Using Compiler 'V5.06 update 5 (build 528)', folder: 'D:\Keil_v5\ARM\ARMCC\Bin'
Rebuild target 'F746ZGAiMdkProject'
assembling startup_stm32f746xx.s...
startup_stm32f746xx.s: Error: A9555E: Failed to check out a license.Trusted Storage open failure
startup_stm32f746xx.s: Feature:       mdk_pro_eval_armcompiler
startup_stm32f746xx.s: License path:  c:\program files\arm\licenses\license.dat;
startup_stm32f746xx.s: FlexNet Licensing error:-158,61003
startup_stm32f746xx.s: Check that your license details are correct in the License Management dialog of MDK. Additional information is available at:
...
startup_stm32f746xx.s:  - ARMLMD_LICENSE_FILE: unset
startup_stm32f746xx.s:  - LM_LICENSE_FILE: unset
startup_stm32f746xx.s:  - ARM_TOOL_VARIANT: unset
startup_stm32f746xx.s:  - ARM_PRODUCT_PATH: unset
startup_stm32f746xx.s:  - Product location: D:\Keil_v5\ARM\sw\mappings
startup_stm32f746xx.s:  - Toolchain location: D:\Keil_v5\ARM\ARMCC\Bin
startup_stm32f746xx.s:  - Selected tool variant: mdk_pro_eval_flex
startup_stm32f746xx.s:  - Checkout feature: mdk_pro_eval_armcompiler
startup_stm32f746xx.s:  - Feature version: 5.0201701
startup_stm32f746xx.s:  - Flex error code: -158
startup_stm32f746xx.s: Product: MDK Professional 5.24 (Evaluation)
startup_stm32f746xx.s: Component: ARM Compiler 5.06 update 5 (build 528)
startup_stm32f746xx.s: Tool: ArmAsm [4d35e1]

If necessary I can add some information available in my TOOLS.ini file?

For your information I don't have licence.dat file besides "License path" indicated above in bold doesn't exist?

I have also an issue regarding "Product location" mappings doesn't exist under D:\Keil_V5\ARM\sw (in spite of right path).

I don't know what is wrong in my configuration, any help will be appreciated.

Thank you.