@roshkiran
Here are the detailed steps:
1: Install 2010,2012 and 2013 VC runtimes (32 bit)
• Microsoft Visual C++ 2013 redistributable package x86
• Microsoft Visual C++ 2012 redistributable package x86
• Microsoft Visual C++ 2010 redistributable package x86
2: Open CMD in Administrator mode and run the following commands:
• C:\Windows\SysWOW64>regsvr32.exe "c:\Program Files (x86)\Adobe\Adobe Experience Manager Forms Designer\FileSystemBrowser.dll"
• C:\Windows\SysWOW64>regsvr32.exe "c:\Program File (x86)\Adobe\Adobe Experience Manager Forms Designer\ImageFileBrowserIDL.dll"
• C:\Windows\SysWOW64>"c:\Program Files (x86)\Adobe\Adobe Experience Manager Forms Designer\FormDesigner.exe" /regserver
3: Uninstall Designer
Steps to Repair Designer:
1: Install 2010,2012 and 2013 VC runtimes (32 bit)
• Microsoft Visual C++ 2013 redistributable package x86
• Microsoft Visual C++ 2012 redistributable package x86
• Microsoft Visual C++ 2010 redistributable package x86
2: Click on Repair Designer while installing again.
Hope this helps!