NSIS error help!

[conoflex]

I am now back online after a week of messing about with talktalk, BT and my router.
least its working some shape,
anyway had trouble before it went down with AMD drivers causing flicker/crossfire problems.
So trying to sort it has brought another annoying problem every single time I try to run an AMD installer (driver download) I get an NSIS ERROR message, I have searched on the net for a fix tried all that I found none which work
Anybody know what to do cos I don't.

 

[conoflex]

Anyone any ideas PLEASE !!
It is happening to all my saved drivers too got them going back to 10.3 and up 11.5b hot fix and not one will run.
downloaded 11.3 twice, 11.5 twice also 10.12 none will run.

 

[yashiro]

Corrupt download or something is interfering at runtime (anti-virus, third party firewall, supposed security software).

The NSIS errors may occur under one of the following conditions:
1. Software files downloaded from the Internet are not complete.
2. Downloaded software files have been modified from the original version.
3. Your PC is infected with a virus.
4. Physical media being used to install the program is damaged.
5. Required hardware (For example, CD/DVD drive) is malfunctioning.

You may do the following tasks:
Note: Try to install your software after each task.
1. Delete the cache of your Web browser. To do this, in the Microsoft Internet Explorer 8 window, open Tools menu and then select Delete Browsing History….Next, click the Delete All button and also select the check box in the confirmation box that is displayed. Finally, click Yes to completely clear the browser cache.
2. If the name of the downloaded installer files comprises multiple words, rename it to have only one word, say, SoftwareNameInstaller.exe.
3. If available, download the software installer file from another approved source.
4. Update your antivirus/Security software program.
5. Disable your antivirus program and any download accelerator tool on your computer, before performing the download.
6. Thoroughly scan your PC for possible virus or spyware infections.

Follow the link below to run the free online scan:
http://onecare.live.com/site/en-us/default.htm
The following thread discusses about removing viruses and malware online:
http://social.answers.microsoft.com...y/thread/ba80504b-61f1-4d71-960f-b561798b7b42

Another workaround:
1. Open Command Prompt window, to do so, click start windows and in the search bar type cmd.exe and right click on it and run it as administrator.
2. Drag your installer file into this window.
3. Press the space key once and type /NCRC and then press Enter.

Probably wise to check your HD for errors too.

 

[conoflex]

Tried all that and more, using MS security anyway so run deep antivirus scan nothing found.
Run sfc /scannow no errors, antimalware scans run clean, deleted browser cache also.
thanks

 

[conoflex]

Anti virus disabled and still no good.
Installers are working fine on netbook and spare rig, So looks like clean install is imminent.