I have an Acer Aspire 5510 running Windows 7 SP1. I'm trying to upgrade to Windows 10 but get a blue screen with error message "IRQL NOT LESS OR EQUAL". Installation then reverts to Windows 7.
I have tried multiple times to install Windows 10 both from a boot disk and Windows 10 download, but same error all the time. Have also tried to check and upgrade various drivers using downloads from Acer support site but nothing helps. Another tip I saw was to disable memory caching in the BIOS but there is no option in BIOS setup on an Acer 5510.
I also have an Aspire 4310 running Windows 10 (slow but it works), so not happy that I can't fix the 5510.
Any suggestions?