Any npm's command is not working - windows

Question

I can attach the error log file
0 info it worked if it ends with ok
1 verbose cli [ 'C:\Program Files\nodejs\\node.exe',
1 verbose cli 'C:\Program
Files\nodejs\node_modules\npm\bin\npm-cli.js',
1 verbose cli 'config' ]
2 info using npm#1.4.28
3 info using node#v0.10.35
4 verbose node symlink C:\Program Files\nodejs\node.exe
5 error Error: ENOENT, stat 'c:\'C:\Program'
6 error If you need help, you may report this entire log,
6 error including the npm and node versions, at:
6 error http://github.com/npm/npm/issues
7 error System Windows_NT 6.2.9200
8 error command "C:\Program Files\nodejs\\node.exe" "C:\Program
Files\nodejs\node_modules\npm\bin\npm-cli.js" "config"
9 error cwd c:\
10 error node -v v0.10.35
11 error npm -v 1.4.28
12 error path c:\'C:\Program
13 error code ENOENT
14 error errno 34
15 verbose exit [ 34, true ]
Any npm's command is not working.
I am using windows 8.1 and I installed npm successfully.
I heard that ENOENT error can be fixed if I make a folder relate to the error path but
error path contains 'C:\Program, I cannot make that file.
How can I solve this problem? I tried to uninstall npm, I failed.
This problem happened because I tried to change prefix for npm but something goes wrong

Answer 1

I found way to fix it.
OK, the reason why this problem happened was that I usually use CMD with administrator's admission.
Because of that setting, actually, I don't need to change prefix of npm but I just want to practice what I learn in my current book.
So I tried to change prefix but accidentally, Using
npm config set prefix C:\program files
I changed the prefix 'C:\program' like this.
because of special character : , I cannot create name of fold including : .
because of damn prefix, npm was totally not working.
I searched npm folder, I found npmrc file but it did not help.
Finally, I found .npmrc at C:\Users\myName .
there, the prefix was setted at C:\program .
I delete prefix and Now it is working!!!!!
Bye Bye let's master nodejs