Updating my AVG

Thank you Alan,
That worked for my AV, but I forgot to mention, it is the AVG Tune up updates that are failing.  There is no Options on that, as far as can see.
That STILL says 'Cannot update' after saying minor bugs update available and going through the process.
 
Please advise. 

Tony, Try this…
Open AVG.
In the top menu click Options, and then click Advanced Settings.
In the left part of the Advanced Settings window double-click Update to show further options.
Click Manage, and then click Delete temporary update files.
Tip: If double-clicking Update does not show the Manage option, click the [+] icon next to Update.
Restart your computer.
Open AVG again, and then click Update now to make sure your AVG is up to date.
AVG Guru

I use Windows 7 on good quality desktop pc.
For the last few months, inspite of excellent broadband connection, the update downloads, but will not install.
There is no change to my AV software and no rejection by firewall. 
Am told the upgrades are to improve security. 
Any advice please?

Thank you Alan,
That worked for my AV, but I forgot to mention, it is the AVG Tune up updates that are failing.  There is no Options on that, as far as can see.
That STILL says 'Cannot update' after saying minor bugs update available and going through the process.
 
Please advise. 

Tony, Try this…
Open AVG.
In the top menu click Options, and then click Advanced Settings.
In the left part of the Advanced Settings window double-click Update to show further options.
Click Manage, and then click Delete temporary update files.
Tip: If double-clicking Update does not show the Manage option, click the [+] icon next to Update.
Restart your computer.
Open AVG again, and then click Update now to make sure your AVG is up to date.
AVG Guru