While Windows cannot "see" your PSU wattage, you can use software to see how much power your components are currently drawing. This helps you understand if your PSU is sufficient.
You cannot measure actual PSU wattage via software (no sensor reports it). However, you can and compare it to what your PSU likely provides. check psu wattage on pc
If you can’t see the sticker because the PSU is shroud-mounted (common in modern cases), check the back of the PSU (where the switch and power cord plug in). Many manufacturers print a condensed label there. If not, you’ll need to remove the PSU mounting screws and slide it out slightly. While Windows cannot "see" your PSU wattage, you
These often use proprietary PSUs with non-standard connectors. The sticker may say “460W Max,” but that might be peak, not continuous. Furthermore, even if the wattage seems adequate, the proprietary form factor means you can’t easily upgrade it. However, you can and compare it to what
Do not just look for the total wattage (e.g., "I have 600W, so I'm good"). You must also check the +12V Rail rating on that same sticker.
The most reliable way to check your Power Supply Unit (PSU) wattage is to look at the on the device itself. Marketing on the box can be misleading (listing "peak" power vs. "continuous" power), but the manufacturer's label is legally required to be accurate.