Yes. The Lenovo Legion Slim 7 15 Gaming Laptop, model number 82K80001US, ships with 16GB DDR4-3200MHz RAM (8GB Soldered DDR4-3200 + 8GB SO-DIMM DDR4-3200MHz RAM), one memory soldered to systemboard, one DDR4 SO-DIMM slot, dual-channel capable. The maximum supported RAM for this configuration is: Up to 24GB (8GB soldered + 16GB SO-DIMM) DDR4-3200MHz RAM). We recommend you consult your certified technician about your RAM upgrade options.

We are sorry to hear that you are having issues with your Lenovo Legion Tower 5i Gaming Desktop Computer, model number 90NC00R5US. First, be sure any software you installed is compatible with Windows 10 and this computer's specific configuration. There is no need to install Microsoft Office software. The software is already part of the operating system, you just need to activate the software with a purchased product key. If you have installed a copy of Microsoft Office, this is conflicting with the existing copy on the system and this will slow your system down. If you have installed a 3rd party anti-virus program, be sure that Windows Defender is turned off and that the trial version of McAfee Anti-Virus software is uninstalled. There can only be one anti-virus program on the system. You may need to restore your system to original factory default settings if any of the programming errors have occurred. You can do that by typing "restore" in the Cortana search window. Just click on the magnifying glass icon at the bottom left of your Windows 10 Desktop. Click on "Reset This PC" Then click on "Get Started" and follow the on screen directions to restore to factory defaults. If there is no incompatible software installed but the issues persist, check to be sure you have the latest version of Windows 10 on the computer. Then update all BIOS files and drivers up to that latest version of Windows 10. You can easily accomplish this by scanning the computer with the Lenovo Utility software available on this computer. This system has Lenovo utilities installed to help maintain the health of the device and keep the operating system software up to date. Type "Lenovo Vantage" in the Cortana Search window (if Lenovo Vantage is not installed on your device, you can download the APP and install it now). Select Lenovo Vantage from the list. In the window that opens, click on "Health and Support". In the expanded menu, select "Hardware Scan" In the window that opens, select "Run Quick Tests". This will scan your entire system for errors. Follow any directions that may pop up. If the problem continues after this scan, now click on "System Update". First select Windows update from the menu. Scan your system to be sure you have the latest version of Windows 10. Once that scan is complete, select "Additional Updates". This will scan your device to be sure there are no new BIOS/Driver updates needed. Follow any instructions that may pop up. If the issue still continues after these updates, we recommend you call Lenovo Tech Support at: 877-453-6686 for additional help.

That really will depend on the requirements and compatibility of the specific software you want to run. The Lenovo IdeaPad 3 14 Laptop, model number 81WH004LUS, ships with Windows 10 S-Mode 64-bit Operating System. Windows 10 S-Mode provides added security by only allowing APPs available ( and therefore certified by Microsoft) at the Microsoft Store. If you don't need the added security or you need to install APPs not available at the Microsoft Store, you can switch to standard Windows 10 Home 64-bit Operating System, at no additional cost. We recommend you check with the specific software publisher's web sites, of the software you will need to use, for their compatibility with Windows 10 S-Mode 64-bit operating system and the minimum/recommended hardware requirements (Is a Graphics card required, the processor speed and the minimum required system RAM and the minimum available hard drive space) to run their program, then compare those requirements to this system's configuration. If you choose to switch out of S-Mode for Windows 10 Home, it is one-way and can not be undone. Here is a link to instructions for switching from Windows 10 S-Mode to Windows 10 Home: https://support.microsoft.com/en-us/help/4456067/windows-10-switch-out-of-s-mode

The Lenovo Legion Tower 5i Gaming Desktop, model number 90NC00R5US, ships with both a 256GB M.2 2280 NVMe solid state hard drive and a 1TB 3.5 inch 7200RPM mechanical hard drive. There is one open drive bay and this computer ships with a tray to support an additional 2.5 inch drive, which is sold separately.