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Lenovo ThinkPad T420 Notebook Questions & Answers
How to remove cmos battery T420
The cmos battery is just under the keyboard. Release screw (1) of the keyboard is beside the ram slots underneath. So remove the ram cover first. Good luck!
Keyboard is locked on lenovo t420 thinkpad
Try to restart the computer. Lenovo computers can be glitchy a lot, and restarting seems to help. If it's a touch screen, the computer can be "confused" on which mode of input you're using.
Uncommanded Cursor Jump
Try these steps might your computer is infected.
Step Followed:-
1. Click on start and type Run.
2. In Run box type Temp.
3. Select all and delete all files.
4. Follow 1st step and type %temp% and then follow 3rd step.
5. Follow 1st step and type prefetch and then follow 3rd step.
6. Follow 1st step and type appwiz.cpl (add and remove programs)
7. Remove unwanted software and all antivirus .
8. Restart the computer.
9. Download Malwarebytes from "http://www.filehippo.com/download_malwarebytes_anti_malware/download/d7670bee6c8cd1bb9341d9a1ffbe832f/ "
10.Scan your computer and remove the infection.
Thanks
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