ActiveDirectory, GPO and ExchangeServer auditing absolutely free of charge! Come take a look

Based on your mentioned query, I would recommend you to follow Exchange server deployment assistant that is available from Microsoft team and covers all required aspects by checking the necessary prerequisites : https://technet.microsoft.com/en-us/office/dn756393.aspx

Here is another informative technet article which provides step-wise details to accomplish this task in flawless manner.

https://technet.microsoft.com/en-us/library/jj874016(v=exchg.150).aspx

First you need to enable auditing of object access as:

Whichever Top Level Policy-->Computer Configuration-->Windows Settings-->Security Settings-->Local Policies-->Audit Policy-->Audit Object Access - you can enable success/failure. Please check out the given below links:

Configuring Audit Policies

http://technet.microsoft.com/en-us/library/dd277403.aspx

How To Set, View, Change, or Remove Auditing for a File or Folder in Windows 2000

http://support.microsoft.com/kb/301640

Apply or modify auditing policy settings for a local file or folder

http://technet.microsoft.com/en-us/library/cc784387.aspx

You can try the following command

Specify the OU

$OU = [ADSI]"LDAP://ou=West,dc=MyDomain,dc=com"

Enumerate all objects in the OU.

$arrChildren = $OU.Get_Children()
ForEach ($User In $arrChildren)
{
# Only consider user objects.
If ($User.Class -eq "user")
{
# Set password.
$User.Invoke("SetPassword", "pAs$w0rd")
# Expire the password.
$User.pwdLastSet = 0
$User.SetInfo()
}
}

Also, you can check the following link for more details.

https://technet.microsoft.com/en-us/library/ee617195.aspx

Here are few articles for your reference:

How to Move Public Folder from Exchange 2003 to Exchagne 2010

http://blogs.technet.com/b/agobbi/archive/2010/08/04/how-to-move-public-folder-from-exchange-2003-to-exchagne-2010.aspx

Migrate public folders to Exchange 2013 from previous versions

https://technet.microsoft.com/en-us/library/jj150486(v=exchg.150).aspx

Here are few links which might be helpful for you

http://www.capterra.com/audit-software/

http://www.windowsecurity.com/software/Network-Auditing/

You need to set the rights to authenticated users/everyone ( Read and Write ).

You can also try below steps to set NTFS permission for that shared folder.

-> Right click on that folder and go to Properties and from the Security tab, click advanced.
-> click "Change permission" and Click "Add" and type "everyone" in the box .
-> Open "everyone" end change its permission as you wish.

Please refer to below article for more information:

Set Permissions for Shared Folders

File and Folder Permissions

ActiveDirectory, GPO and ExchangeServer auditing absolutely free of charge! Come take a look

You can try the following command:

(get-aduser -filter *).count

For only Enabled User Accounts
(get-aduser -filter *|where {$_.enabled -eq "True"}).count

For only Disabled User Accounts
(get-aduser -filter *|where {$_.enabled -ne "False"}).count

Here are few links which might be helpful for you

http://www.capterra.com/audit-software/

http://www.windowsecurity.com/software/Network-Auditing/

Based on your mentioned query, I would recommend you to follow Exchange server deployment assistant that is available from Microsoft team and covers all required aspects by checking the necessary prerequisites : https://technet.microsoft.com/en-us/office/dn756393.aspx

Here is another informative technet article which provides step-wise details to accomplish this task in flawless manner.

https://technet.microsoft.com/en-us/library/jj874016(v=exchg.150).aspx

Here are few articles for your reference:

How to Move Public Folder from Exchange 2003 to Exchagne 2010

http://blogs.technet.com/b/agobbi/archive/2010/08/04/how-to-move-public-folder-from-exchange-2003-to-exchagne-2010.aspx

Migrate public folders to Exchange 2013 from previous versions

https://technet.microsoft.com/en-us/library/jj150486(v=exchg.150).aspx

You can try the following command

Specify the OU

$OU = [ADSI]"LDAP://ou=West,dc=MyDomain,dc=com"

Enumerate all objects in the OU.

$arrChildren = $OU.Get_Children()
ForEach ($User In $arrChildren)
{
# Only consider user objects.
If ($User.Class -eq "user")
{
# Set password.
$User.Invoke("SetPassword", "pAs$w0rd")
# Expire the password.
$User.pwdLastSet = 0
$User.SetInfo()
}
}

Also, you can check the following link for more details.

https://technet.microsoft.com/en-us/library/ee617195.aspx

You need to first enable auditing of object access --> Whichever Top Level Policy--> Computer Configuration--> Windows Settings--> Security Settings-->Local Policies-->Audit Policy-->Audit Object Access - you can enable success/failure.

Please follow the instructions mentioned in th below techNet articles and apply the same to track all activities : http://blogs.technet.com/b/mspfe/archive/2013/08/27/auditing-file-access-on-file-servers.aspx

Apply or Modify Auditing Policy Settings for a Local File or Folder
https://technet.microsoft.com/en-us/library/cc771070.aspx

For enabling the audit settings, please refer to:

Configuring Audit Policies

http://technet.microsoft.com/en-us/library/dd277403.aspx

Apply or modify auditing policy settings for a local file or folder

https://technet.microsoft.com/en-us/library/cc771070(v=ws.11).aspx