I have a W520 machine and want to install an SSD solid state drive. Three questions.

Actually, the poster thinks too much. Why do you still need to look at your own needs instead of permutations and combinations? From your question, it seems that you have several needs:

1. I hope the computer speed can be faster.

2. A larger capacity is needed to store data.

3. Sometimes the computer will be used without power for a long time.

4. The current system is inseparable for you.

So, taken together, the best solution is to use msata ssd. The reasons are as follows:

1. msata does not take up space.

2. The original hard disk does not need to be changed.

3. The battery in the optical drive bay can be replaced and can be removed at any time. This is the characteristic of the optical drive bay. Even hot-swappable batteries are no problem. It lasts longer when plugged in and lighter when unplugged.

4. SSD is not about reading speed, but iop, which is random reading speed. As long as the random reading speed reaches a certain level, you will feel that the program starts quickly.

So you need to do the following:

1. Buy a msata ssd. For now, Renice’s msata should be more suitable for you. 120G is about 1199, it may be cheaper. You can find it anywhere on Taobao.

2. After installing msata ssd, use ghost software to back up the original system and find out the image files inside.

3. After partitioning the ssd (must use win7 partition), then directly copy partition to partition into the first partition of the ssd hard disk.

4. If you don’t need to take the exam, then make a winPE boot disk and ghost the image file to the first partition of ssd.

5. Then adjust the drive letter of the partition, and then test whether the SSD can be started. If it can, congratulations, you can directly format the HDD's c drive as another partition.

Among them, the new system partition depends on your own use. If we just talk about the system and necessary software, then at least 20G is required. If you are used to putting software on the C drive, then leave 30G, or you can make the distinction based on your situation. Finally, the power supply for the optical drive can be installed at any time when it is convenient.