it depends

Some companies will force terminated to take out their assets by charging fees, but some don't.

If you want to roll out your 401k, you have two options: 1) roll into your current company's 401k; 2) open a rollover IRA in financial institutes. You should check whether your current company offers good fund options. In general, it is recommended to roll into 401k because 1) the management fee is normally lower; 2) 401k asset is shielded away from liability law suits.

If you decide to roll into IRA, choose rollover IRA instead of traditional IRA. Rollover IRA can roll back to 401k but not traditional IRA.

If you are not financially savvy, check your Benefits Department or 401k provider.