If you encountered some issue while launch Design Studio client tool, the following steps may help you overcome the issue.
Step 1：
uninstall the Design Studio Client and delete the whole installation directory in case there is something left
C:\Program Files (x86)\SAP BusinessObjects\Design Studio
Step 2:
rename the following 2 folders:
C:\Users\xxx\Analysis-config
C:\Users\xxx\Analysis-workspace
Step 3:
Now reinstall Design Studio Client
(Download following patch and apply)
Support Packages and Patches
->A-Z
->D
->SBOP DESIGN STUDIO
->SBOP DESIGN STUDIO 1.5
->DESIGN STUDIO CLIENT 1.5
->DS_CLIENT01P_1-80000553.EXE (latest patch level should be used.)
Best Regards,
Ivy