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Is it safe to remove duplicates from the Path Variable ? The Path Variable of my Windows 7 OS looks like this:
1 C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;
2 C:\Program Files\Common Files\Microsoft Shared\Windows Live;
3 C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live;
4 C:\windows\system32;
5 C:\windows;
6 C:\windows\System32\Wbem;
7 C:\windows\System32\WindowsPowerShell\v1.0\;
8 C:\Program Files (x86)\Common Files\Roxio Shared\DLLShared\;
9 C:\Program Files (x86)\Windows Live\Shared;
10 C:\Program Files\MiKTeX 2.9\miktex\bin\x64\;
11 C:\Program Files\Microsoft\Web Platform Installer\;
12 C:\Program Files (x86)\Microsoft ASP.NET\ASP.NET Web Pages\v1.0\;
13 C:\Program Files (x86)\Windows Kits\8.0\Windows Performance Toolkit\;
14 C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;
15 C:\Program Files\Java\jdk1.7.0_07\bin;
16 %systemroot%\System32\WindowsPowerShell\v1.0\;
17 C:\MySQL\bin;
18 %systemroot%\System32\WindowsPowerShell\v1.0\
There are some duplicates but i am not sure if i can just remove them. The lines 7,16 and 18 look identical to me, so can i just delete two of them or does %systemroot% and C:\windows make a difference ? Also is it safe to remove line 2,3 and 9, because i do not use Windows Live ?
(Type sysdm.cpl in 
+R) or (+Break)
Devid
Posted 2013-06-20T19:04:05.860
Reputation: 5 566
1I see only 1 dup. But you can always remove real dups. – ott-- – 2013-06-20T19:08:42.533
@ott-- so there is difference between %systemroot% and c:\windows ? That means i can only delete the last line ? – Devid – 2013-06-20T19:10:20.913
The
%systemroot%is evaluated at runtime and can be different fromc:\windows\then. – ott-- – 2013-06-20T19:13:46.557