Hi Vandana,
Please check the following note:
2118551 - HANA STUDIO with Secure strage is locked error
Symptom
In HANA STUDIO you see "Secure strage is locked" error in Systems tab.
In error log you can see:
Secure storage was unable to retrieve the master password. If secure
storage was created using a different Windows account, you'll have to
switch back to that account. Alternatively, you can use the password
recovery, or delete and re-create secure storage.
Cause
Secure strage is locked
Resolution
Please delete .eclipse folder under your HANA STUDIO workspace and try again.
Also, check the following blog
The "not quite" secure storage HANA Studio, Reconnect your Studio to HANA Servers!
Regards
Adil