I pushed the software on the PC, but it keeps continually failed. Please advise what should I do? I pushed the software on the PC, but it keeps continually failed. Please advise what should I do?

Is this sentence correct? Please confirm ABC location main server Symantec is not updated. Due to this reason ABC computers are not updated. Once the server is update will automatically update all the client computers.

The below sentence is correct? If anything wrong please correct. Thanks In this list some of the user names listed multiple groups. I marked those user names on D column

Please help correct my sentence. Thanks Mr. X asked me to prepare the Accounts department computer names. I checked your computer name on notes. It shows so many computer names. Which computer you are using currently? Please confirm.