to fix this problem:
- remove temp files from %temp% folder (C:\Users<user name>\AppData\Local\Temp)
- open the register and remove “HKLM\SOFTWARE\WOW6432Node\Microsoft\Microsoft SQL Server Management Studio” or execute via cmd (with admin rights):
reg DELETE “HKLM\SOFTWARE\WOW6432Node\Microsoft\Microsoft SQL Server Management Studio” /reg:32
- run install with admin rights
NOTE: Just for those who don’t know register just open CMD as an administrator and run the command => reg DELETE “HKLM\SOFTWARE\WOW6432Node\Microsoft\Microsoft SQL Server Management Studio” /reg:32
It will ask for confirmation enter Y or y or Yes or yes and the operation should complete successfully.