Hi Glisean,
Welcome to Sony Community!
We're sorry to hear about your frustrations. May we know where did you buy the replacement battery and adaptor? And I believe these are Sony brands, right?
When the battery blinks along with the orange power indicator it indicates that the battery pack is running out of power. If it blinks fast in orange it means that the battery error has occurred due to a failed battery pack or an unlocked battery pack.
By the way, the model VGN-FW590FWB is not compatible with Windows 10 operating system. Therefore, there is no driver that will support the laptop with this version. You've mentioned that you even attempted to update the drivers which is not possible because they don't match the current operating system currently installed in the laptop.
You may try the steps provided in the links below to troubleshoot the issue with the laptop.
https://us.en.kb.sony.com/app/answers/detail/a_id/42608/kw/battery%20wont%20change/related/1
If it persists, we suggest that you go back to the original version of operating system to make sure that you will get the drivers that you need.
Regards,
Jen
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