You need to update to keep most up to date protection it does offer a trial upgrade to the paid version, which expires after two weeks and reverts to the free version.
There is no difference between the Free, Trial and Premium download files. If you are installing for the first time during the install, it will ask if you want a 14-day trial mode.
If after 14 days, you don't want the Premium version there is nothing you need to do as Malwarebytes 3.x reverts to manual stand-alone scanner that detects and removes malware when you run a scan.
Even with notifications off and no update notice option, I'm keep getting it.
You do not say which version of Malwarebytes you currently have, what kind of licence you currently have, or what OS you are running (I'm assuming Windows).
Here’s how you can update your antimalware database; Download this updated database from official Malwarebytes link; run the downloaded file (mbam-rules.exe) as an administrator by right-clicking on it and selecting “Run as Administrator”; This should fix your out-of-date malwarebytes anti-malware database issue.
The reason why I don't want to update is because if updated, it seems like it's a 30 day trial version. Because I do see that trial letter and everything seems like it's pay to use and not working unless paid.
If you are running MWB v2.2 or earlier , MWB will stop supporting it soon so you have little choice but to upgrade.
Earlier teething issues with MWB v3 are largely resolved but as the V3 product is more resource intensive as it protects in more ways - older PCs may struggle.In our product we have compiled a number of new technologies that are designed to quickly detect, destroy, and prevent malware.Malwarebytes' Anti-Malware can detect and remove malware that even the most well known anti-virus and anti-malware applications fail to detect.SECOND STEP It is possible that the program has been compromised by some high-tech stealthy malware that prevents Malware Bytes from operating correctly.For this reason they have developed a free tool called “Anti-Rootkit” that targets malware programs that are trying to block Malware Bytes.After the trial you can choose to continue using Free or upgrade to paid Premium.