General Tips

Here are the official minimum and recommended official hardware requirements.

Take the minimum requirements with a pinch of salt. “Minimum” does not mean “usable”. In my opinion ( with 30 years of hardware support experience to back me up) the “Recommended Hardware requirements” should really be the Minimum hardware requirements for a decent X-Plane 12 experience.

But what if you don’t know how your CPU or Graphics Card stacks up?

How it compares to the specified :

CPU: Intel Core intel i5-12600K or Ryzen 5 3500 or better, or Apple Silicon

or 

Video Card: a DirectX 12-capable video card from NVIDIA or AMD with at least 8 GB VRAM (GeForce RTX 3070 or better, or similar from AMD, or Intel Arc B580)

Go to CPU Benchmark and check where your hardware compares in the “pecking order”. When you are looking at CPU’s you want to look at the Single Thread CPU chart.

This is a Windows-only tip.

If you have been using the computer for tasks other than flying, we all know that it’s best to shut down the computer and boot it up again from scratch before starting X-Plane.

But which is better – Windows Restart, or Shut down and Reboot
Or is there something better still?

Most people think the best way to get a clean start is to shut down the machine and restart it a few seconds later. This, believe it or not, does not give the cleanest start. The reason why is that Windows goes into a sort of hibernation state [not full hibernate] where the Windows kernel state is saved, enabling a faster restart time. This is called Fast Startup.
If you merely restart Windows without shutting down, this forces a complete stop of all processes and is unaffected by fast startup. So it appears that the best approach is to restart the computer just before flight. But, you must already be booted up.
You can, of course, completely disable fast startup and accept slightly longer boot-up times as the price of a clean boot-up:
Go to Control panel –> Hardware and Sound –> Power Options
On the left click “Choose what the power button does” 
Under Shutdown Settings, clear (untick) the checkbox next to “Turn on fast startup” option.

However there is a third option which is not quite so well known:
Holding the [SHIFT] key down while clicking shut down gives you the best of both worlds. The machine shuts down completely, and does not use Fast Startup. The subsequent boot-up results in a totally clean Windows start.

There are many threads on this forum about “what should I buy?”. Getting the best hardware for a specific budget needs some time spent on it.
You can’t get away from the technical jargon, so learn a little about how they all work together
Here’s a suggested purchase decision flow for a Windows or Linux PC :

1. Decide on your budget and how flexible it is- for example $XXXX +/- $XXX
2. Choose the CPU you want. You may have heard of a particular “good” CPU, or you came across a special offer or you went to Passmark Single-thread CPU Benchmark. This site will list CPUs in order of single-thread performance against price. This is constantly updated will get you close to the CPU you are looking for and can afford.
3. The next decision is the motherboard – Nearly all motherboards work well but stick to brand names like ASUS, Gigabyte, MSI or ASRock. Within each brand they will have a 4 price levels – Budget (uses a budget chipset), Mid-range (uses a budget or mid-range chipset), High-end (uses an top-level chipset with overclocking abilities and higher speed RAM Modules) and Luxury (uses a High-end chipset with extensive overclocking abilities). Unless you are into overclocking, choose a mid-range motherboard with mid-range chipset. If the higher-end motherboard emphasizes good motherboard cooling in their advertising opt for that even if you don’t intend to overclock.
   Once you have chosen your motherboard, google motherboard reviews of that particular motherboard and make sure that your motherboard choice is the best. If you can’t decide which motherboard, ask your AI of choice to compare the motherboards in question specifically asking it to consider X-Plane as the application that will be running on it.
4. Next is the RAM – This is where most people go wrong. Once you have chosen your motherboard, go to the support section and you will find a compatible memory module list. Only choose a RAM module listed there. If you want to use a different RAM module and it’s not listed, then Stop and re-choose the motherboard. NEVER USE A RAM MODULE THAT IS NOT LISTED!
   Faster RAM is more expensive and there will be diminishing returns the faster it is rated.
5. Next choose your SSD. Some people prefer the operating system on one SSD and X-Plane on a second SSD, but this is a legacy from the mechanical hard drive days. Now it can happily be just one SSD – Just get the fastest one you can afford – 1TB at minimum – preferably larger. Again, check out reviews of that particular SSD. 
6. Now study up as much as possible and choose the most powerful graphics card you can afford. X-Plane is evolving to utilize more and more graphics power. For a tight budget, try to choose a Graphics card which is a good balance between The Single-core CPU performance on the one side vs the graphics card and the monitor(s) pixel size. Use ChatGPT to help you find the right Graphics card for a balanced system. The best X-Plane system will usually have the best graphics card but you will be bankrupted in the process. However a graphics card with less than 8GB of RAM will give you endless problems with X-Plane. So once again it is a compromise.
7. Next choose your PSU [power supply unit]. Again, many people go wrong here. Use an online PSU calculator – Here’s a good calculator from MSI – which will help you calculate the power you need. Now, here’s where people go wrong: if you are on a tight budget add at least 33% to that calculated wattage value, Otherwise add 50%. In other words, if the calculator says you need 650W, purchase a 1000W unit.
   An alternative approach is to use a 2000VA UPS between the Electricity mains and the PC. Then you can stay closer to the calculated wattage.
8. Finally choose your Chassis and Cooling system. Get a really good CPU water cooler (expensive) because if the CPU runs a bit hot, you will get stutters during flight. Alternatively, modern air coolers are also OK as long as they are really large. Get a large chassis and fit as many additional fans in it as the case will take and make sure the case is broad enough to accommodate a large graphics card and the CPU fan.
9. Build the system yourself or give your component list to a computer supplier to assemble and test for you. If the computer supplier makes suggestions to your list go back and check first. A computer for X-Plane is not the same as a high-power gaming machine.

After tinkering with your X-Plane or accidentally copying something to the wrong place or inadvertently deleting that vital file, you decide to re-install a fresh copy “from scratch”. Once you have made this decision, be aware that while the installer will scan an existing installation for missing /corrupted files and replace them, it will not delete files/folders that have been moved to the wrong place or stuff which has been added. 

For the same reason, you don’t want to install a Second copy into the same folder as your existing installation

To get a proper clean install, the new instance of X-Plane needs to be installed into a new folder.

To avoid confusion seasoned X-Plane users tend to prefer to keep the same base folder name. For example “C:\X-plane 12”. So, for a new fresh installation, first rename your existing installation base folder name to something else – for example  rename “C:\X-plane 12” to “C:\X-plane 12-OLD”. Then download and re-install the new fresh virginal copy to “C:\X-plane 12”.

TIP:
Since downloads take a while, immediately COPY this installation to another folder  like “C:\X-plane 12-VIRGINAL” which you never access. That way, you have a clean untouched copy.  At a later stage you can delete the “OLD” folder

Many X-Plane pilots who have built themselves physical cockpits sometime use an older version of X-Plane to ensure consistency. If you use a multi-PC system with a Master Computer (usually showing just the cockpit) and one or more slave computers (displaying exterior views), then you are almost certain to be irritated by the ground vehicles, AI aircraft, Jetways and even X-Plane-populated static aircraft that do not sync correctly between different screens. A ground vehicle in the way on one screen and not in another view is a constant source of annoyance which really breaks immersion.
For such systems, the download and installation of the newly released X-Plane 12.3.0 is almost mandatory. Why? Because according to Laminar’s Marco Auer:

Quote

External visuals in X-Plane are now smoother and more consistent than ever. In version 12.3.0, we’ve improved synchronisation across multi-PC setups — not just for the aircraft, but also for ground vehicles, boats, jetway extensions and static aircraft.

Read all about it here: https://www.x-plane.com/2025/09/whats-new-in-12-3-0/

There seems to be a recurring confusion between product keys and the Laminar Identity when activating a copy of X-Pane 12.

If you have registered for a laminar identity, your Product Key is converted into an identity and you can activate X-Plane with your newly created User Name and Password associated with your identity. If you have not created a Laminar identity yet, you can activate X-Plane using your product key. If you have created an identity then the product key does not seem to work and you HAVE to activate using your identity.

If you have lost your product key, click here

For more information, there is a long thread on X-Plane.org here which should answer all your activation questions