installing debugging tools to analyse minidumps on windows 7
I had the same problem. I searched my whole system and no trace of windbg was found. I didn't bother to find the reason. Instead, I paused the installer and found the windbg MSI file in the temp directory and directly installed it. It works well.
In case someone want the file, I put it here: https://dl.dropboxusercontent.com/u/5395920/windbg-x86-6.12.0002.633.msi . The version is 6.12.0002.633 (x86) and its MD5/SHA1 is 2bd67a7b00507ad93539e138a4a6a2bf / 117814c255f19dc67e769c668bc97e547c05a55b. It's also here, directly from Microsoft http://download.microsoft.com/download/A/6/A/A6AC035D-DA3F-4F0C-ADA4-37C8E5D34E3D/setup/WinSDKDebuggingTools/dbg_x86.msi, but I don't know how long it will last.
Kinda similar problem here:
The Win SDK installer for Win7 which contains Debugging Tools always fails. However in the install log one can find the above mentioned link http://download.microsoft.com/download/A/6/A/A6AC035D-DA3F-4F0C-ADA4-37C8E5D34E3D/setup/WinSDKDebuggingTools/dbg_x86.msi
This installer runs fine !
If someone needs other tools from the Win SDK: there are more msi installer links in the log !