Windows 10: Changing Boot Drive

Hello everyone.So, I'm trying to change my local drive to a portion of my other SSD that has more storage. Long story short, I got a prebuilt and changed all parts except for local drive with 100 gb in it, 1 gb left to spare because I don't know how to. I finally decided to look it up, and a site told me I needed to copy my local drive to another drive, then change boot priority to that drive. However, they said it would erase all the data on that drive. So, I partioned the disk, then copied. It is now named Local Disk G:.My issue is, I don't know how to change the boot drive priority. I k

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Changing boot hdd

I downloaded PartitionMagic8.0, but the partition i want to make is not bootable.
So the system boots from the old, loud hdd, and when i unplug the old, it doesnt boot.
Any advice or suggestions how to change boot hdd without reinstalling Winxp?

 

Instructions to change board?

Boot off of the windows CD, repair your XP partition (hopefully you won't have to reinstall windows), install drivers, and you're good to go. You'll see dual channel mode in the BIOS splash screen results from POST. It'll be pretty obvious *Stick Out Tongue . Here's a list of general tweaks for the 939Dual-SATA2.
Step one- Set time, date
Step two- In CPU settings, disable cool n quiet, set memory clock to DDR400, play with memory timings (CAS-TRAS-TRP-TRCD), which are listed in the bios in the order CAS, TRCD, TRAS, and TRP. EDIT- new BIOS's mess around with this order, can't be too sure on it, but yeah at least you know what the RAM timings stand for *Big Grin .
Leave MA timing at 2T unless you think your system can handle 1T
Step three- in Chipset settings, enable onboard LAN, disable onboard Audio, disable AGP fast write, set primary graphics adapter, and set CPU-NB and NB-SB link speed to 1000mhz.
Step four- in IDE, disable controllers you aren't using. On all drives detected, enable SMART if you can and set PIO/DMA as high as they will go.
Step five- Enable legacy USB support
Step six- Set password if you're worried about anyone screwing around with your BIOS settings
Step seven- Configure your boot sequence. I reccomend hard drive first, optical drive second, and floppy drive third.
Step eight- Save changes, boot into XP, and enjoy your computer.

 

laptop doesnt boot automatically

This is what happened.

1. Did a repair install and later disabled hibertnate in CMD.
2. Enabled legacy option ROM in BIOS.
3. After a few times startup ( i used the system in such mode for 5 days), changed boot option back to default.
4. Vola!! It boots automatically to win10 without any keypress. Tested it with many starts to confirm the same.
5. Re-enabled hibernate option using CMD and later selected Fast Startup.
6. System booted normally, without the need for any keypress.

I do not know exactly whether such steps resolved the problem or what else happened, hence cannot suggest above steps.

Many thanks to all members who helped to troubleshoot problems.