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Unable to install programmes after upgrading from Vista


Dannyb
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I have just upgraded my laptop from Vista to Windows 7 and need to install a couple of programmes, iTunes and printer drivers from a CD. Neither will allow installation, the iTunes download has been made but when I click on install it reads: 'The installer encountered errors..... Errors occurred during installation. Your system has not been modified.' When I insert the CD to install the drivers for my printer I get the message: 'Windows cannot verify the digital signature for this file. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source.' Can anybody advise a solution for this please? Thanks.

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John-P

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Try starting in safe mode by pressing f8 on startup, then click on start and enter uac into the search box and press enter. Then move the slider to the bottom then click ok and reboot the computer in normal mode.

You should now be able to install programs.

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Dannyb

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Brilliant John-P, thanks for that. Worked for me, programmes now installed and Windows updated. You're a star.

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