• We hope you have a fantastic holiday season to close out 2025! Thank you all so much for being part of the Tom's Guide community!

Question where is the cmos battery or reset jumper?

On tablets there are usually no removable CMOS batteries. Usually it just takes a long power button press when it is not plugged in.
 
No idea what tablet you have as the image link has expired.

I had a Dell tablet where I could enter the BIOS using the SHIFT+Restart trick within Windows to enter the BIOS.