The message says Setup.exe-corrupt file then the real message as follows.
The file or directory x:\$WINDOWS.~BT\windows\system32\en-us\sechost.dll.mui is corrupt and unreadable . please run the chkdsk utility.
Can someone tell me how to fix it?
Did you run the Check Disk and did it show anything? You can also try running you can also open command prompt as administrator and type in sfc /scannow see if that helps. Is this a clean install or an upgrade? A clean install is always best.
Almost automatically, thirdparty software puts an item in the startup sequence. They are almost entirely uneeded. They remain installed, of course, and all can be started manually, on demand. As reghakr says, the only essential is the anti malware program, I am sure you will notive a significant improvemnt in your start up time and the use of resources, if you follow the advice.