There are two easy ways :
Command Prompt
Goto Start -> Execute ->
cmd (this opens the windows console, pretty much like MS-DOS)
cd C:\Program Files (x86)\Bitcoin (brings you into the default bitcoin-qt directory)
bitcoin-qt -rescan launches it with the rescan option
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.falconfly.de%2Ftemp%2Fbitcoinqt-commandprompt-rescan.gif&t=664&c=IwyQSYqQ9pAnMA)
Desktop Shortcut
...just edit its properties to include the -rescan option
(make a copy of the original BitCoin-QT launch shortcut, edit & rename it and keep that Rescan-Option shortcut besides your normal one for easy re-use anytime you need it)
![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fwww.falconfly.de%2Ftemp%2Fbitcoinqt-shortcut-rescan.gif&t=664&c=Pmr3dPrBLESmgw)