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Generally, no, you cannot enter the CMOS setup after you have booted. But it depends on the exact computer and if there is a separate CMOS configuration tool. In fact, the IBM AT was like that, and it required a separate setup program that ran after the computer booted. Some of the modern computers will let you change certain CMOS settings on the fly if you install a utility their utility for doing that.

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7y ago
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15y ago

No. However, some systems will offer utilities to make changes to the setting in the BIOS while in Windows.

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14y ago

No. It depends on the manufacturer of the BIOS.

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9y ago

Yes

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Q: Can you enter the CMOS setup after the computer system has booted up?
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