Installing Windows 10 on this laptop is a simple task, the internet is here to help. However, there may be a problem with Wi-Fi in the 5GHz band. Most likely, the 8022022d setting is enabled in the settings of the wireless communication module, blocking the operation of Wi-Fi 5. For now, you can use the USB-C port as a regular one for the splitter. If there is no special splitter with a USB Type C connector, then you can use an OTG cable from your smartphone. Regarding the upgrade: if you want to put a second drive in a 2.5" slot, you will need to somehow get a connection cable with part number 5C10S30212 and bolts for mounting the drive. M.2 SSD can theoretically be installed in 2280 format with an M key, but performance guarantees no one will give you. RAM: take Samsung or Kingston. The cheapest quality.
Notebook DELL G7 17 7790 (1920x1080, Intel Core i5 2.4 GHz, RAM 8 GB, SSD 256 GB, HDD 1000 GB, GeForce GTX 1660 Ti, Win10 Home)
26 Review
🖥️ Dell Optiplex 990 Tower Business Desktop Computer: Intel Quad Core i5, 8GB RAM, 500GB HDD, Windows 10 Pro (Renewed)
12 Review
27" Apple iMac All-in-One (Retina 5K, Mid 2020) MXWT2RU/A, 5120x2880, Intel Core i5 3.1GHz, 8GB RAM, 256GB SSD, AMD Radeon Pro 5300, MacOS, Silver
13 Review
HP Pavilion Gaming Desktop Computer, Ryzen 5 3500 Processor, NVIDIA GTX 1650 4 GB, 8 GB RAM, 512 GB SSD, Windows 10 Home (TG01-0030, Black)
11 Review