Windows 7 boots slowly with black screen after "Welcome"

ThrashZone said:

Hi,
Dual/ triple booting like you are now without a system reserved to retain the boot loader is most likely why at this point.
Just having the boot loader on the C drive will usually slow down start up with a single os and you've got 3 doing it :)
I have both way with and without a 100mb system reserved and the one with it boots faster which in my system spec's is the Acer verses without a 100mb sr on my asus build.

Ah I got it!
I have noticed that I dont have system reserved but can still boot into Safe mode by using F8. Does that mean my boot loader are on C, not on system reserved?
So is there a way to create the reserved partition without formatting for my triple boot??

Hi,
None that I know of
It would need to be created by the first original installer
Another issue is with already 3 partitions a 4 is not likely possible without formatting the drive as gpt instead of mbr so it can have pretty much unlimited partitions created
Convert MBR Disk to GPT Disk

Hi,
That I don't know
I'm guessing on the order these 3 os's were installed
Original win-7
Second win-10
Third another win-7 ?

Hi,
The system reserved is obviously marked active and is also in front of all other partitions so it is first in line on the drive so it directs to the default os making it faster to boot

Mixing win-10 into the drive complicates matters a bit because it acts as a alpha and tries to interfere with any other os booting
So you would need to use win-10 boot options to choose the default os regardless to see any booting performance with or without a system reserved partition
The size of the system reserved varies win-7 default size if created is 100mb
This has been said to be too small and about 400mb is a better size

You can ceate one yourself but since it will not be first on the drive it may not help because the default os will also be marked a active.

Hi,
You can use free mini tool to create a 4th partition in from of the original installs space = assuming it's your data partition
Best Free Partition Manager for Windows | MiniTool Partition Free

Trouble is copying the boot loader to it = I have no idea of what all needs to be copied to it someone else would have to chime in on that process :)

Windows can't do this
Creating a 4th partition will trigger windows to suggest formatting the exist drive as dynamic
I've always read that is a bad thing
Convert a Basic Disk to a Dynamic Disk

Mini tool might not do that but will have to move the entire contents the amount of the size of the system reserved 100mb-400mb so data is at risk so make a system image well before attempting anything so you can get the setup back if things go badly :)
Create Backup Image with Macrium Reflect by Britec - YouTube

Hi,
That is the easiest way to insure a system reserved partition is create by having a smaller partition created ahead of time that does not span the entire drive.
Not sure how you managed to not have one quite frankly ?

If you originally had win-7 and no other partitions beside the one spanning the entire drive no system reserved would be created which is ideal for boot to a drive with one os.
Installing another os on a created partition will usually automatically create a system reserved to help it boot to either os so that is a mystery why it was not created :)

We usually are doing things the opposite way
Bootmgr - Move to C:\ with EasyBCD