Can someone tell me where I can download the bios for the Aspire 5336?

The Acer Aspire 5336 is 11 years old and circa 2011 laptop and Acer has taken the bios version updates off, this is mainly and because of its age and also imo, due to stopping users' flashing the old bios chip and the probability of bricking their old laptops! In saying this, you can download the correct bios flash .exe bios update from the web but, be very careful as allot of these bios flashes are wrong and could brick your laptop, The Aspire 5336 bios chip is old and flashing an old bios chip does also destroy it and brick the bios, which and btw happened to me years ago, so I speak from experience, even if you do the flash process 100% and perfectly, as that is the risk of flashing an old chips!

But and fortunately (if you want this laptop?) you can buy a new flashed bios chip that can be resoldered and changed, so that is the risks that you are taking. Here is a link from SOFTPIDIA (which I take no responsibility for if it works or not, so its up to you?) its the version; Acer Aspire 5336 Notebook Bios 1.04