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Microsoft has two pages for determining the version of Windows you are currently running. The links to those pages are listed below.

If you are unsure which version you have, here is how to find out:

  • Vista & 7:

Right click Computer, Properties. Look under the System section, System Type: it will show either 32-bit or 64-bit Operating System.

  • XP:

Right click My Computer, Properties. If it doesn’t show 64-bit, you have a 32-bit Operating System

US Army Special Operations Command OWA and SSL VPN – Users Manual


To determine the version of Internet Explorer you are running on your PC:

  • Open Internet Explorer by clicking the Start button  , and then clicking Internet Explorer. Press ALT+H and then click About Internet Explorer.


  • Open Web Page, select Help from top menu, and then select About Internet Explorer.

US Army Special Operations Command OWA and SSL VPN – Users Manual


You will need to disable UAC (User Access Control) in Windows 7 ONLY. It will remain off until your first successful SSL VPN connection. After successful connecting, you can re-enable UAC. It is strongly recommended by Microsoft that you leave this feature enabled. When it is turned off, all users are considered Administrators on the system and can add, remove and modify programs and the system even if the user was created as a Limited user (without administrative rights).

Click on the ‘ Start ‘ icon (left) then click on ‘ Control Panel ‘ (right)

Select Start and navigate to Control Panel

Click ‘ User Accounts and Family Safety

User Accounts and Family Safety

Click ‘ User Accounts

User Accounts

Click ‘ Change User Account Control settings ‘, also called UAC

Change User Account Contol Settings

To disable UAC, move the bar from ‘ Always notify ‘ (left) to ‘ Never notify ‘ (right).

After your first successful connection to the SSL VPN, go back and re-enable UAC by moving the bar back up to ‘ Always notify

“Always Notify” and “Never Notify”

You will be prompted to reboot the system, this occurs anytime you change the UAC settings (left) Click on the ‘ Start ‘ icon and then on ‘ Restart

Reboot Prompt and Start Icon > Restart


OWA-Troubleshooting-FlowchartOWA Troubleshooting Flowchart

  Table E-1: List of Acronyms
AD Active Directory
AKO Army Knowledge Online
CAC Common Access Card
CIO Chief Information Officer
COR Contracting Officer Representative
DoD Department of Defense
EITC Enterprise Information Technology Contract
EMAIL Electronic Mail
IE Internet Explorer
NIPR Non-Secure Internet Protocol Routable
OS Operating System
OWA Outlook Web Access
PC Personal Computer
PIN Personal Identification Number
POC Point of Contact
RDP Remote Desktop Protocol
SSL Single Sockets Layer
UAC User Access Control
USASOC United States Army Special Operations Command
USB Universal Serial Bus
VPN Virtual Private Network
























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