upon start of my pc i start receiving message
"This application has failed to start because imagehlp.ddl was not found... "
and than it does not let me start any program i tried to back it up but in safe mode it does not want to correspond how do i execces start up programs managing to remove that problem

to possibly fix a dll program you need to run the sfc command

to do this in vista do the following steps

Vista:

Start
All Programs
Accessories
Run

then type sfc /scannow


You may like to try this too: (recommended).

Detecting and repairing disk errors. You can use the Error-checking tool to check for file system errors and bad sectors on your hard disk.

Open My Computer, and then select the local disk you want to check.
On the File menu, click Properties.
On the Tools tab, under Error-checking, click Check Now.
Under Check disk options, select the Scan for and attempt recovery of bad sectors check box.