rudrax 2,294 Posted April 8, 2018 Share Posted April 8, 2018 (edited) One of my friends brought a Lenovo laptop, Lenovo ThinkPad E41-15 yesterday to my attention requiring to install windows 7 in it. I did that and went to lenovo support for drivers. The strange thing is I can install all the drivers successfully but windows can't verify their their digital signature. Come on microsoft, those are OEM drivers! Here what I have tried so far- I verified MD5, SHA-1 and SHA-256 of the driver files with the hashes given on the download page. They all are intact. Tried installing the drivers by disabling the driver signature verification. No problem in that case - everything works just fine but only for the session. After you restart, driver signature verification fails and system switches to generic VGA driver instead of Radeon R4. Tried force install the driver but it shows signature verification error (the driver is installed BTW, it is just windows is not allowing to use it). I don't know what is there left to try. Edited April 9, 2018 by rudrax typo 0bin 1 Quote Link to post Share on other sites
Undertaker 2,633 Posted April 8, 2018 Share Posted April 8, 2018 I would uninstall any drivers related to that which I may have installed, enable the driver signature check if disabled, restart the PC and then use the lenovo system update utility to let it auto-update and fix the thing. If that doesn't work, I would try a third-party driver update tool like DriverEasy. Recruit, knowledge, dcs18 and 2 others 5 Quote Link to post Share on other sites
dcs18 19,641 Posted April 8, 2018 Share Posted April 8, 2018 From an elevated Command Prompt, run the following commands:— bcdedit -set loadoptions DISABLE_INTEGRITY_CHECKS bcdedit -set TESTSIGNING ON Undertaker, 0bin, gingerbread80 and 2 others 5 Quote Link to post Share on other sites
rudrax 2,294 Posted April 9, 2018 Author Share Posted April 9, 2018 I was considering to use the Lenovo System Update Utility but as I downloaded official OEM drivers from official source, I thought what difference it would gonna make! I will try it now though. And I don't think that 3rd party driver update utility can do anything here as windows will block them anyway. Undertaker 1 Quote Link to post Share on other sites
Jime234 372 Posted April 9, 2018 Share Posted April 9, 2018 Did you try windows update for Driver updates ? rudrax 1 Quote Link to post Share on other sites
rudrax 2,294 Posted April 9, 2018 Author Share Posted April 9, 2018 Not yet. Manually downloaded a driver from windows update catalog but that didn't work. Jime234 1 Quote Link to post Share on other sites
Undertaker 2,633 Posted April 9, 2018 Share Posted April 9, 2018 No update? Recruit 1 Quote Link to post Share on other sites
rudrax 2,294 Posted April 10, 2018 Author Share Posted April 10, 2018 12 hours ago, Undertaker said: No update? The guy took his laptop as I provided him a temporary fix which is to keep pressing the Esc during POST and when the Advanced Boot Menu appears, select the "Disable driver signature enforcement" from there. Looks like his is doing okay with that. Quote Link to post Share on other sites
Undertaker 2,633 Posted April 10, 2018 Share Posted April 10, 2018 That's a bummer.....we replied in like within 15 mins of your posting, I thought you had atleast that much time. 0bin and Recruit 2 Quote Link to post Share on other sites
rudrax 2,294 Posted April 11, 2018 Author Share Posted April 11, 2018 (edited) 14 hours ago, Undertaker said: That's a bummer.....we replied in like within 15 mins of your posting, I thought you had atleast that much time. Sorry mate. I appreciate your efforts and I know you deserve a result for the procedure you have suggested but that guy was in a hurry and needed it like ASAP. As soon as I told him about the temporary fix, that fcuker came within the hour and took it. Edited April 11, 2018 by rudrax typo Undertaker and Jime234 1 1 Quote Link to post Share on other sites
Administrator DKT27 10,941 Posted April 11, 2018 Administrator Share Posted April 11, 2018 Just wait and see, he will be using that for years thinking that this is how it would always work, even if the drivers would have somehow been fixed via OS updates on it. For a real fix for it, try contacting the manufacturer there, tell them the drivers are not digitally signed on them. Jime234 and rudrax 1 1 Quote Link to post Share on other sites
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