I am assuming you are using Pega 7. Below steps should work:

1. From the operator menu (right of the Designer Studio header), select Profile option.

2. Click Change Password.

Hi,

How do I reset the administrator@pega.com password if I forgot the password? Thanks.

Rgds

Gary

If you have access to any other admin operator id then  you can login and reset the password for Administrator@pega.com operator id.

If you do not have that option then only way would be take a R-A-P of Administrator@pega.com Operator ID record from another instance and import it using command line utility. This will override the existing operator record and you should be able to log into the system.

Please have a look at the access when rule pzModifyAllowed on class Data-Admin-Operator-ID. Make sure that access role PegaRULES:SysAdm5 is in your access group when modifying the administrator@pega.com operator.

Hi,

How did you try changing the password? Did your password meet the required security guidelines? 

Please check the below articles to learn about security guidelines. 

https://pdn.pega.com/sites/pdn.pega.com/files/help_v73/procomhelpmain.htm#security/security%20policies/sec-enable-security-policies-ref.htm

Please let me know if this helps.

Regards,

Rachit

This issue is resolved through the following local change:

1. Login as Administrator@pega.com
2. Select Profile from the drop-down next to the operator name to view the Operator Profile
3. Select the Change Password button
4. Enter the password information and click Save