SQL Server Setup – Error code 0x84B30002

SQL Server Setup has encountered the following error:
No feature were uninstalled during the setup execution. The requested features may not be installed. Please review the summary.txt logs for further details.
Error code 0x84B30002.

Follow the below steps it may help to uninstall, Before follow this procedure please make sure you have some idea about registry

1. Open Registry Editor
2. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\
3. Browse Ids one by one and identify the GUIDs for SQL Server 2008
4. Run the below command for all SQL Server 2008 Guids one by one

msiexec /x “GUID”

activate windows from command line – slmgr

Temporarily extend evaluation period (limited execution – see output below)…

C:\Windows\System32>cscript slmgr.vbs /rearm

C:\Windows\System32>shutdown -r -t 1

Show detailed license information…

C:\Windows\System32>cscript slmgr.vbs /dlv

License Status: Initial grace period
Time remaining: 43200 minute(s) (30 day(s))
Remaining Windows rearm count: 0

Activate windows…

C:\Windows\System32>cscript slmgr.vbs /ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx

C:\Windows\System32>cscript slmgr.vbs /ato

Will require access to the internet – most of the time the issues are either time sync or connectivity to internet.

http://support.microsoft.com/kb/921471 Windows activation fails and may generate error code 0x8004FE33

To do this, configure the following list of CRLs to be unauthenticated on the proxy server:
http://go.microsoft.com/
https://sls.microsoft.com/
https://sls.microsoft.com:443
http://crl.microsoft.com/pki/crl/products/MicrosoftRootAuthority.crl
http://crl.microsoft.com/pki/crl/products/MicrosoftProductSecureCommunications.crl
http://www.microsoft.com/pki/crl/products/MicrosoftProductSecureCommunications.crl
http://crl.microsoft.com/pki/crl/products/MicrosoftProductSecureServer.crl
http://www.microsoft.com/pki/crl/products/MicrosoftProductSecureServer.crl
https://activation.sls.microsoft.com