Try re-installing the audio driver.
The same model ThinkPad can have different types of network, video and audio drivers and unless you know exactly which one is installed in your ThinkPad, you need to download all the drivers and install each driver until you find the right driver. When you download the drivers, write down the device driver and it's file name so you have a record of which driver you are installing and which directory the unzipped files are located on your hard drive. Go to the IBM/Lenovo WEB site - support/download page and download the latest Windows device drivers for your model computer, Use this link: - http://www-307.ibm.com/pc/support/site.wss/product.do?template=%2Fproductselection%2Flandingpages%2FbrowseByProductLandingPage.vm&sitestyle=lenovo&brandind=10&validate=true
SOURCE: IBM THINKPAD R52 KEYPAD RELATED PROBLEM
On most IBM laptops, in order to turn numlock on/off, you must press Shift + Scroll Lock. You can tell if numlock is on at-a-glance because a symbol that looks like an arrow pointing up with a "1" in its center is illuminated on the status light display located near the power button.
SOURCE: SOUND
does the sound card show up in device manager.
If so its a setting that needs adjusting.
SOURCE: Sound problem
Go to control panel,and check device manager to see if you have any problems. If not, click on Hardware and Sound, then on Sound, and see if somehow your laptop speakers have been turned off. Reconfigure them anyway, and test the sound there. If that doesn't fix it, go to IBM and reinstall Realtec. Sometimes it gets corrupted, and sometimes it takes more than one installation to get it fixed. Let me know if you have any problems.
SOURCE: video and audio drivers for IBM thinkpad 1161
Go to the IBM WEB site www.ibm.com and click on Support and Downloads
SOURCE: forget BIOS Password (Laptop - IBM Thinkpad Lenovo R60)
For that you need to reset factory defaults settings for bios.
For reset bios u have to open back side of your laptop then u find motherbord circuit there.
pull cmos cell on motherbord for 15 minute then it reset to defaults.
Also u can reset with jumper settigns read carefully on mother bord there is 1 jumper near cmos cell u read there " bios reset or clear"
It is on 1-2 position right now set it in 2-3 position then power up then all bios settings are reset.
then again set it in 1-2 its original position.
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