White Bubbles on touch screen

[vallabha_123]

white bubbles appears on my hp touch screen

help me with that!!!

[asmita6658]

Hi @vallabha_123

Welcome to the HP Support Community. 

Try connecting the computer to an external monitor to check for the bubbles or you may also test this in the BIOS. To access the BIOS, try these steps -

1) Shutdown the computer. 
2) Turn the computer back on again and repeatedly tap on the ESC until a Startup menu appears. 
3) Press F10 once for BIOS. 

If the computer does not bubbles in the BIOS or on an external monitor, try these steps -

1) In the search box on the taskbar, type Device Manager, and then select Device Manager from the list of results.
2) In Device Manager, expand Display Adapter. 
3) Right-click on the Display Adapter, and then select Uninstall device > Delete the driver software for this device check box > Uninstall.
4) Restart the computer. 

Also, try updating the computer - 

Step 1 Windows Updates - 

1) In the search box, type and open Windows Updates. 
2) Check for updates. 
3) If the updates are available, click on install and restart the computer. 

Step 2 HP Support Assistant Updates - 

1) In the search box, type and open HP Support Assistant. 
2) Check for updates. 
3) If the updates are available, click on install and restart the computer. 

Download and install the BIOS from this link. 

Let me know how that goes. 

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