There are a lot of users who use the Bitcoin core wallet.
For a fully verified node，they face a huge problem, that is, more and more hard disk space. up to now（2018）, more than 200G space is required. cpu and memory，it is continuous consumption and will recover after use，however, the hard disk space is a hard requirement and cannot be released after being occupied.
The beginning of Bitcoin, 2009--2012，the hard disk space less than 1G,
in 2015, 20G space is required for a full node.
now, more than 200G.
so, follow this, more and more nodes can only be simple payment verification nodes. Machines running full nodes are concentrated in the hands of large disk users, like a mining pool and ASIC, contrary to decentralization, will also become a security risk for Bitcoin.
The size of the blockchain is 178 GB as hugeblack has pointed out. This is not very large by today's standards, even my phone has enough storage space to hold the full Bitcoin blockchain. Yes the blockchain will continue to grow in size, but there is a fixed amount it can grow yearly, it cannot continue to grow exponentially, so there is no reason not to think that this aspect of Bitcoin can't scale.
There are a certain amount of blocks per year, and those blocks can only hold so much space. So with 52,560 blocks per year (
avg 144 blocks/day * 365 days/year), and with each of those blocks having 100% segwit tx usage, that would put the block size at about 4 MBs (some say 1.6MB - 2 MB).
4 MB/block * 52,560 blocks/year is a maximum of 205 GBs of data added to the blockchain per year. This is not an exponential number. We aren't even close to the blocks being this full/large, but we already have the storage to meet this demand. Once we are seeing 100% full blocks at 4 MB/block I'm sure 205 GBs of data per year will be nothing in terms of storage space.
200 GB is not that big in terms of space if you take into account that how far the technology has come to. Maybe it is time to get an upgrade.
Given how advanced the technology is nowadays, it will be better to give your PC an upgrade otherwise switching to a new wallet is a lot of hassle.
Try using a different wallet of there are issues with the current state of you PC. If you are unwilling then maybe go for a better CPU.
You guys are ruining this forum. OPs post wasn't him having an issue, it was him talking about the limitations of storing the blockchain and the risk for centralization. Go spam in the altcoin subforum spam cesspool.