On 12 March a Malwarebytes message appeared offering an upgrade which I accepted. However, when it came to needing to restart, an error message was issued (Sorry didn't make a note of it) and after restarting, Malwarebytes is not running. Tried a manual restart, same result. Task Manager has no entries for Malwarebytes. Clicking the desktop icon, produces "Unable to connect to service".
Win 7 x64 Pro (yes I know its no longer supported by MS but for the moment I have to stick with this machine and is one of the reasons I purchased Malwarebytes Premium ).
More recently I also purchased AVG Internet Security (full package). Until this error appeared, both products seemed to be working quite happily alongside each other. Most recent full scan with AVG (yesterday) came up clean. Lastly there is also the rather basic Microsoft Security Essentials which was installed on this machine when I bought it. MS are still issuing definition updates for it so I've left it on.
Looing through this forum I think something went wrong during the update process (my broadband speed isn't very good) but I would welcome detailed instructions on restoring Malwarebytes to full operations. When it was running I have seen the occasional warning about certain websites wanting to install PUPs so it has certainly been doing its job!