Cursor won't move
I installed Avast (antivirus) on my husband's computer but I'm not sure it completed installation. Now a small screen has appeared saying, "Windows installer" and continues to read that it is preparing to install. Now the cursor will not move. It seems to be locked. We have unplugged the computer and left it off several times (we can't use the 'start' button to turn it off). Is there a way to unfreeze the cursor and screen to get rid of that installer screen?
He has a Gateway with XP. He's about to run me out of the house. Help please!