Install instructionstions

Improving Performance.md

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+# Improving Performance of Embroidery Collection Manager
+
+## Steps to making this script run faster
+
+- Install Powershell 7
+- Install the PSAuthClient module
+
+## Install Powershell 7
+
+Read the Microsoft provided documentation 
+https://learn.microsoft.com/en-us/powershell/scripting/install/installing-powershell-on-windows?view=powershell-7.4
+
+
+run `powershell` and type the command
+```
+winget search Microsoft.PowerShell
+
+```
+
+## Install the PSAuthClient module
+
+run `powershell` or `PWSH` after installing Powershell 7 as administrator and type the command
+```
+install-module PSAuthClient -Scope AllUsers
+
+
+```
+
+If you do not do this as an administrator then you will get the error message 
+
+```
+install-module : Administrator rights are required to install modules in 'C:\Program Files\WindowsPowerShell\Modules'.
+Log on to the computer with an account that has Administrator rights, and then try again, or install
+```
+
+![img](docs/images/Start-runas-admin.png)