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Lately, after I shutdown (full shutdown, not sleep or hibernate) my fully charged Surface Laptop 2 at night, I turn it on in the morning and find that the battery has lost around 25% power overnight! What's going on and how can I fix this?
The laptop is only about 6 months old and the battery seems to be in good health.
I've reported this on the MS Feedback Hub. Please upvote it so that it gains attention: https://aka.ms/AA5w24b
Also be sure to report there as well if you are experiencing this issue.
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Please see https://support.microsoft.com/en-us/help/4469839/surface-laptop-2-update-history
This should be available on Windows Update:
October 10 release
The following updates are available for all Surface Laptop 2 devices running Windows 10 April 2018 Update, version 1803 or greater:
| Windows Update History Name | Device Manager Name |
|---|---|
| Surface – Firmware – 145.501.139.0 | Surface System Aggregator– Firmware<br><br><ul><br><li><span>145.501.139.0 helps improve battery life.</span></li></ul> |
I always considered that SMT and HT were the same thing, but obviously I was wrong.
I hope for an upcoming update in a short time.
I'm sorry that the MS Surface-officials didn't make their contribution in this discussion, because I would consider it appropriate given the bug caused by the MS update.
Just to update those who are experiencing the 75% start up issue on the Surface Laptop 2: It still appears that the firmware released via Windows Insider has completely resolved the issue. I'm just about ready to call it an actual fix. I hope it will be released to everyone soon.
the advantage of SMT disabling in terms of battery performance it has been very very impressive (till to 5-6 hrs of active stand). The question is the relevance for CPU in absence of hyperthreading. In recent years, it has been suggested to disable hyperthreading for security reasons (virus attack via some exploit) and, on some CPUs, game performance did not change, but rather was better. I don't care about games at all (and I don't have them), but I use Surface P4 for calculation and for jobs (medical research). Have you tested the overall performance without hyperthreading?
I ask because I'm really thinking of keeping it inactive even when the bug is fixed, since the battery's performance is excellent, but I don't want to penalize the processor's performance.
I do not recommend disabling hyperthreading...then you will take a great performance hit. But to answer my statement there is difference between HT & SMT But it is great to hear that your machine is up to par once again.
NOTE: SMT is not HT They co-exist for further mitigation against malware. Just like MEMORY ISOLATION via Threat Defender or Advanced Threat Defender
the advantage of SMT disabling in terms of battery performance it has been very very impressive (till to 5-6 hrs of active stand). The question is the relevance for CPU in absence of hyperthreading. In recent years, it has been suggested to disable hyperthreading for security reasons (virus attack via some exploit) and, on some CPUs, game performance did not change, but rather was better. I don't care about games at all (and I don't have them), but I use Surface P4 for calculation and for jobs (medical research). Have you tested the overall performance without hyperthreading?
I ask because I'm really thinking of keeping it inactive even when the bug is fixed, since the battery's performance is excellent, but I don't want to penalize the processor's performance.
