The make of PC should not make a difference. Follow the suggestions in this thread...
To turn off silence detection in NCH WavePad, navigate to the recording settings and disable the relevant automatic features.
Recording Options
Go to Options > Recording (or Tools > Options > Recording in some versions). In the Automatic Recording section, uncheck Voice Activated Recording to disable silence-based pausing and detection entirely—the Silence Threshold and delay settings won't apply once unchecked.
Editing Features
For post-recording tools like Auto Trim Silence or Split at Silences (under Edit or toolbar), avoid using those functions, as they rely on silence thresholds you set per use; there's no global toggle, so simply skip them