===== dummy =====
==== search button in taskbar not working ====
Symptom: The search button in the task bar does not respond to the keyboard.

Fix: Reboot the search process

ctrl+alt+del -> Task Manager -> Processes -> Search -> Search -> End Task

Ref:- https://www.reddit.com/r/Windows10/comments/317gce/windows_10_search_bar_not_working/

==== wifi password ====
  Control Panel\Network and Internet\Network and Sharing Center
  -> View your active networks -> click the link after "Connections:"
  -> which will be something like Wi-Fi (SSID)
  -> Wireless Properties -> Security -> Network security key
  -> Show characters -> enter the admin password

==== Check windows version ====
<code>
winver
</code>

==== Set environment variables ====

Using the run prompt (windows key + r)
<code>
rundll32 sysdm.cpl,EditEnvironmentVariables
</code>

Using the cmd prompt
<code>
C:\Windows\System32\rundll32.exe sysdm.cpl,EditEnvironmentVariables
</code>

==== unset environment variable ====
To temporarily unset an environment variable
<code>
set FOOBAR=
</code>

This will remove the variable from the current environment (not permanently).

Ref:- https://stackoverflow.com/questions/13222724/command-line-to-remove-an-environment-variable-from-the-os-level-configuration

==== dump environment variables ====
user environment variables
<code>
reg query HKEY_CURRENT_USER\Environment > user_env_vars.txt
</code>

system environment variables
<code>
reg query "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" > system_env_vars.txt
</code>

tested on | windows 7

script - [[https://github.com/KamarajuKusumanchi/rutils/blob/master/bin/windows/dump_env_vars.bat | dump_env_vars.bat]] (github.com/KamarajuKusumanchi)

Ref - https://stackoverflow.com/questions/573817/where-are-environment-variables-stored-in-registry

==== refresh environment variables ====
tags | git bash reread environment variables

If you update an environment variable and want to use the new value in an existing git bash session, 
 download the refreshenv.sh script from https://github.com/badrelmers/RefrEnv and call it from bash with ''source /path/to/refrenv.sh''

Tested it on:
  * git bash is running inside conemu 191012 <code>$ git --version
git version 2.34.1.windows.1
$ bash --version
GNU bash, version 4.4.23(1)-release (x86_64-pc-msys)
</code>
  * OS: Windows 10 Enterprise
==== list of installed packages ====
''Control Panel -> Programs and Features'' shows the list of installed packages.

Tested on | Windows 10 Enterprise

==== create a file starting with dot in explorer ====
To create a file with a dot at the beginning in explorer, add another dot at the end. Like .condarc. . Explorer will allow it and remove the trailing dot.

Ref: https://superuser.com/questions/64471/create-rename-a-file-folder-that-begins-with-a-dot-in-windows
==== last reboot time ====
tags | when was a windows machine rebooted, check when a windows machine was rebooted.

In git bash
<code>
systeminfo | grep -i "boot time"
</code>

In the Windows run box
<code>
cmd /k systeminfo | find /i "boot time"
</code>

In windows shell
<code>
systeminfo | find /i "boot time"
</code>
or
<code>
systeminfo | find "System Boot Time"
</code>

Works in Windows 7, Windows 2012.

Ref:-
  * https://serverfault.com/questions/159612/windows-server-last-reboot-time
  * https://superuser.com/questions/523726/how-can-i-find-out-when-windows-was-last-restarted
  * https://www.howtogeek.com/tips/how-to-tell-when-your-windows-pc-was-restarted-last/

==== Linux to Windows ====
tags | equivalent of foo in windows

^ Linux ^ Windows ^ notes ^
| cat | type | https://superuser.com/questions/434870/what-is-the-windows-equivalent-of-the-unix-command-cat |
| rm | del | |
| rm -rf "path" | rd /s /q "path" | https://stackoverflow.com/questions/97875/rm-rf-equivalent-for-windows |

==== software I am currently evaluating ====
  * https://explorerplusplus.com/
    * Advantages:
      * tabbed explorer windows
    * Notes:
      * started using it from 2020-11
      * Using 64-bit version of 1.3.5

==== clear recent files list ====
https://www.businessinsider.com/how-to-clear-recent-files-windows-10

===== batch script ====
==== batch file calling another batch file ====
<code>
call foo.bat
call bar.bat
</code>
Ref:- https://stackoverflow.com/questions/1103994/how-to-run-multiple-bat-files-within-a-bat-file