I cannot believe I am having such a nightmare with this. I am a bookeeper and have had a previous clients SAGE 50C V27 account package on my laptop. I have uninstalled that and tried to reinstall again to use for a new client but no matter what I do, once the intallation has taken place on opening the old Company is magically there and there is no way I can get them off and put in the details of the new company. I have all the activation keys and serial numbers but do not get asked for any of this. I do on the other hand get asked for the account number (which I know is legitimate as it is on the SAGE invoices) but this says it is invalid. How on earth has SAGE managed to embed my old clients copy into my laptop!! I desperately need to work on my new client so would appreciate it if anyone has a magic solution for this. Hours of internet search has just left me more frustrated than I can say :(