I need to download Garageband for snow leopard 10.6.8 where can I find it?

https://itunes.apple.com/us/app/garageband/id682658836?mt=12

You need to get it from an iLife DVD or your computer’s original disks. The Mac App Store version won’t work on Snow Leopard.

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GarageBand 10 won’t work on Snow Leopard. The newest GarageBand version which will is 6.0.5, and that can only be gotten from a DVD.

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There is no download link for a full version of GarageBand '11, the installer has to be purchased like Niel described.

The installer disks for your Mac or an iLife DVD from Amazon or eBay will probably contain an early version of GarageBand '11.

Once you installed this early version use the updater on Apple's support page to update to GarageBand 6.0.5, the version for your system. GarageBand 6.0.5

https://support.apple.com/kb/DL1507?viewlocale=en_US&locale=en_US

If you get warnings about expired certificates, set the date of your computer back to March 2012, so the installers will run.

Is there a problem with your Mac? When I suspect that some adware might have invaded my Mac I scan the Mac with Malwarebytes, see this page: https://www.malwarebytes.org/antimalware/mac/

Malwarebytes won't run on 10.6.8.

I know at one point it was 10.7 and higher compatible. May need to check Malwarebyte's website to see if they up'ed that.