Windows 7 environment variable restart

This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. I have the same question Report abuse. Details required :. Cancel Submit. Frederik Long. In reply to HeatherMyers's post on August 8, I have this simple batch script to change my Maven from Java7 to Java8 which are both env. Till now I find this working best and easiest. You probably want this to be in one command, but it simply isn't there in Windows I liked the approach followed by chocolatey, as posted in anonymous coward's answer, since it is a pure batch approach.

However, it leaves a temporary file and some temporary variables lying around. I made a cleaner version for myself. Make a file refreshEnv. Refresh your console environment by executing refreshEnv. Thank you for posting this question which is quite interesting, even in Indeed, it is not easy to renew the shell cmd since it is a single instance as mentioned above , because renewing environment variables in windows allows to accomplish many automation tasks without having to manually restart the command line.

For example, we use this to allow software to be deployed and configured on a large number of machines that we reinstall regularly. And I must admit that having to restart the command line during the deployment of our software would be very impractical and would require us to find workarounds that are not necessarily pleasant.

Let's get to our problem. We proceed as follows. Then, in the same powershell script, we just have to call the new environment variables available. For example, in a typical case, if we have just installed nodeJS before with cmd using silent commands, after the function has been called, we can directly call npm to install, in the same session, particular packages like follows.

Once the powershell script is over, the cmd script goes on with other tasks. Now, one thing to keep in mind is that after the task is completed, cmd has still no access to the new environment variables, even if the powershell script has updated those in its own session. Thats why we do all the needed tasks in the powershell script which can call the same commands as cmd of course.

I made a better alternative to the Chocolatey refreshenv for cmd and cygwin which solves a lot of problems like:. The Chocolatey refreshenv is so bad if the variable have some cmd meta-characters, see this test:.

This script will merge all the three and remove any duplicates. This script append the new path to the old path of the parent script which called this script. It is better than overwriting the old path, otherwise it will delete any newly added path by the parent script.

This breaks build because linker cannot open system profile's Temp folder. I cannot post it here I reached the post limit, so download it from here. There is no straight way, as Kev said. In most cases, it is simpler to spawn another CMD box. More annoyingly, running programs are not aware of changes either although IIRC there might be a broadcast message to watch to be notified of such change.

It have been worse: in older versions of Windows, you had to log off then log back to take in account the changes With a little adjustment it can work in your case too I believe.

Edit: this only works if the environment changes you're doing are as a result of running a batch file. To solve this I have changed the environment variable using BOTH setx and set, and then restarted all instances of explorer. This way any process subsequently started will have the new environment variable. The problem with this approach is that all explorer windows that are currently opened will be closed, which is probably a bad idea - But see the post by Kev to learn why this is necessary.

I just wanted to state that, those who use Anaconda, when you use the chocolatey Refreshenv command; all the environment variables associated with conda will be lost. To counter this, the best way is to restart CMD. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?

Collectives on Stack Overflow. Learn more. Is there a command to refresh environment variables from the command prompt in Windows?

Ask Question. Asked 13 years, 3 months ago. Active 16 days ago. Viewed k times. Improve this question. Andy McRae 2 2 silver badges 11 11 bronze badges. Eric Schoonover Eric Schoonover Actually, every program that needs to see them has to be restarted. The environment is copied into the process' memory on startup and therefore has no connection whatsoever to the system-defined envvars anymore.

Not a command, so not quite an answer, but there is support for it using Win32 API if I read the following correctly: support. Add a comment. Active Oldest Votes. After installing Chocolatey, just type refreshenv.

Improve this answer. MarredCheese What am I doing wrong? Please provide more detail about ur system conf to debug. Meanwhile you can refer to a similar open issue here. It doesn't work out of the box. You have to have Chocolatey already installed, which installs the refreshenv script.

If refreshenv prematurely exists your script as it did for me , you can use "call RefreshEnv. Show 1 more comment. Create a file named resetvars.

CreateObject "WScript. Environment "System" for each sitem in oEnv oFile. Environment "User" for each sitem in oEnv oFile. Close create another file name resetvars. I couldn't find a straightforward way to export environment variables from a vbs script back to the command prompt, and b. Note : this script does not delete variables. This can probably be improved. ADDED If you need to export the environment from one cmd window to another, use this script let's call it exportvars.

Environment "Process" for each sitem in oEnv oFile. Close Run exportvars. Vishrant 12k 10 10 gold badges 54 54 silver badges 91 91 bronze badges. As I did say in my answer "or, manually add using SET in the existing command prompt. Good answer though. Keyslinger: That's not actually possible. Any program spawned can update its own environment, but not that of the running cmd.

A batch file CAN update the cmd. Be aware that some programs also cache the environment variables too. In my case I ran this script and then had to restart Intellij. Show 8 more comments. Here is what Chocolatey uses. Please wait NateS 5, 4 4 gold badges 47 47 silver badges 57 57 bronze badges. This is an incredibly useful piece of utility software, thanks so much for sharing. Note: Chocolatey has moved repos and the latest version of this script can be found here with some bug fixes : github.

Show 5 more comments. I accidentally deleted the Path environment variable by creating a new one with Path name. How can I restore my old Path environment variable? I lost my PATH with a program install earlier today, but with all the existing programs already running, it was easy to get it back.

If you have a command window open, run:. If you don't, you can look at the environment variables of currently-running programs with Process Explorer procexp. I followed the advice in the answer to a related question here and recovered my previous path setting as of this morning using regedit. Expanding a bit on that answer, here's how I did it. Read the linked answer to get the full instructions, I don't provide all the details here. You could do a system restore. Swipe in from the right edge of the screen, and then tap Search.

If you're using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, and then click Search. Enter Recovery in the search box, tap or click Settings, and then tap or click Recovery. Background: Happened when launching WLM after a reboot. The only thread with information regarding the missing WLDcore.

Before the said reboot, there was an admin PS console open in the attempt to make Curl accept commands. Must have knocked out the PATH variable with it somehow. So the only option to recover the original values was with the system restore also mentioned in this thread.

A good thing is the apps that use PATH on this machine document their requirements of it, so easy to repair. For those who experienced similar, here's Brink's Windows 10 values:. I only discovered the problem with the environment variables days after they got ruined by the installation of an outdated app.

But I still had a full registry backup. There one can find all the system environment variables as off the date of the backup. Depending upon how recent the backup is, and assuming no environment variable changes since then, you are ok. Worst case is that you'll have to reinstall the apps that you had installed after the registry backup and before losing your path data, which is typically less work than a restore.

Below I'll explain how this can be done. Open the backup. If that does not work try ControlSet or higher. You should now be left with "pure hex" without commas or zeros as separator. This is a hex to ascii converter. Copy paste the "pure hex" data into the hex window and click convert. You can now see your path data, and copy paste them into Notepad, compare with the current version, and add the missing data. You're back in business! Missing data can be retrieved in the same way as explained above.

I have just retrieved it by doing as follows: My previous Path settings was still on the dos cmd prompt screen. So right click on it with your mouse. Take 'Select All'.