Chosen Solution

I have an HP 15-0066na and it comes with the sacrificing 4GB of ram

Hi, Did you mean HP 15 da0066na? If so, you can increase the memory to 8GB by replacing the 4GB memory module that is installed with an 8GB memory module. There is only one memory slot on the motherboard Here’s a link to the maintenance and service guide for the laptop, taken from this webpage. Scroll to p.43 to view the necessary pre-requisite steps and then the procedure to remove/replace the memory module. Also on p.43 you will find the part number for the 8GB memory module - 862398-855 If you search online using the part number only in the search term you will get results for suppliers. Alternatively search for 8GB DDR4, 2400MHz, Non-ECC, CL17, X8, 1.2V, Unbuffered, SODIMM, 260-pin