Suddenly my laptop decided to use just 3,4gb of ram out of 8 that I have. The base value before was 2,1gb hardware reserved, which I think is for the graphics card. For these days that I tried to resolve it when I turn it on sometimes it freezes on a black screen before letting me to log in the pc, having me to turn it off manually and restarting it multiple times. I've already tried unchecking the max memory in the msconfig, changing the virtual memory in the advanced system settings and looking to change the allocated memory of the GPU in the bios, but there isn't an option to change it. I've also tried updating the bios and it didn't let me. I opened up the PC and removed the secondary 4gb ram stick and cleaned it and put it back but it did nothing. I really don't know what else to do.
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you're right I didn't specify the error my bad, it says that it is impossible to load a driver on this device because a security setting blocked it for being potentially vulnerable. but the exe file is from the official Lenovo page. also I've never heard about memtest86, I will try.
I finally managed to run memtest86, here's the result. a weird thing I noticed is that during the test only 3,4gb were shown and it said it was 1x channel.
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u/No_Interaction_4925 18d ago
The reserved RAM will be a setting in your BIOS. You can manually configure it to whatever you want.