Rainmeter comes in both 32-bit and 64-bit versions. If you try to load a 32-bit plugin with a 64-bit version of Rainmeter (or vice versa), Windows will fail to load it and report Error 126. This often happens when people upgrade their computer from a 32-bit to a 64-bit version of Windows but attempt to carry over old settings.
Check the or Quarantine logs for recent actions involving Rainmeter.exe or any .dll files. Rainmeter.dll Load Error 126
Error 126 can be caused by a handful of issues. By understanding these, you can quickly pinpoint the problem and choose the right fix. Rainmeter comes in both 32-bit and 64-bit versions
If essential Windows system files are corrupted, it can prevent DLLs from loading properly. Check the or Quarantine logs for recent actions
Follow these solutions in order, as they are arranged from easiest/most likely to more complex.