Screen is black cursor moves , but nothing appears. just changed fan

check if your clock battery on motherboard is working properly

how silly are you.
why dont you do what he tells you. TAP THE CENTER OF THE CROSS.
F......I....

Upgrade issue. Why did you upgrade? Was it absolutely necessary? Upgrading should only be done as last resort because often it results in peripherals that worked no longer working. And if manufacturer of peripheral does not provide a new driver or patch you are SOL.

Try this link:

Windows 10 black screen of ***** with no cursor on to the Screen

Try press "Ctrl+Alt+Del" (Task manager) then "File -> New Taks" type "explorer"

reboot the system, wait for the VAIO logo to appear, and then start pressing F8(keys depends on the model ) . The Advanced Boot Options screen will appear shortly. Use the arrow keys to highlight the “Repair Your Computer” option and press Enter.

Have u connected signal cable to the monitor? Is it ON?Try with different monitor

You should reset the margins where you would like them. To do this, go the the file screen and press MARGIN. Press <--- to change the left margin, or ---> to change the right margin, or the up arrow to change the top margin, or the down arrow to change the bottom margin.

Do one at a time. When you choose one (i.e. <---), the message "LEFT MARGIN SETTING" appears on the screen and the cursor moves to the left margin column automatically. Move the cursor to the desired location by using the arrow keys. As you move the cursor, the corresponding margin mark moves along with it. The press "DO" to set the new margin.

Hope this helps.

Jay @ www.granadahillsbusinessmachines.com

check for a virus

Hope this helps others. My mouse stopped controlling cursor but buttons worked. Problem was it would not work on a black table. Slip a piece of white paper under it and waaala! It works. I'm thinking optical mouse and dark surface might be an issue.